Engineering Data Users Guide
Transcript of Engineering Data Users Guide
-
7/22/2019 Engineering Data Users Guide
1/44
Engineering Data User Guide
Release 14.5ANSYS, Inc.
October 2012Southpointe
275 Technology DriveCanonsburg, PA 15317 ANSYS, Inc. iscertified to ISO
9001:[email protected]
http://www.ansys.com
(T ) 724-746-3304
(F) 724-514-9494
-
7/22/2019 Engineering Data Users Guide
2/44
Copyright and Trademark Information
2012 SAS IP, Inc. All rights reserved. Unauthorized use, distribution or duplication is prohibited.
ANSYS, ANSYS Workbench, Ansoft, AUTODYN, EKM, Engineering Knowledge Manager, CFX, FLUENT, HFSS and any
and all ANSYS, Inc. brand, product, service and feature names, logos and slogans are registered trademarks or
trademarks of ANSYS, Inc. or its subsidiaries in the United States or other countries. ICEM CFD is a trademark used
by ANSYS, Inc. under license. CFX is a trademark of Sony Corporation in Japan. All other brand, product, service
and feature names or trademarks are the property of their respective owners.
Disclaimer Notice
THIS ANSYS SOFTWARE PRODUCT AND PROGRAM DOCUMENTATION INCLUDE TRADE SECRETS AND ARE CONFID-
ENTIAL AND PROPRIETARY PRODUCTS OF ANSYS, INC., ITS SUBSIDIARIES, OR LICENSORS. The software products
and documentation are furnished by ANSYS, Inc., its subsidiaries, or affiliates under a software license agreement
that contains provisions concerning non-disclosure, copying, length and nature of use, compliance with exporting
laws, warranties, disclaimers, limitations of liability, and remedies, and other provisions. The software products
and documentation may be used, disclosed, transferred, or copied only in accordance with the terms and conditions
of that software license agreement.
ANSYS, Inc. is certified to ISO 9001:2008.
U.S. Government Rights
For U.S. Government users, except as specifically granted by the ANSYS, Inc. software license agreement, the use,
duplication, or disclosure by the United States Government is subject to restrictions stated in the ANSYS, Inc.
software license agreement and FAR 12.212 (for non-DOD licenses).
Third-Party Software
See the legal information in the product help files for the complete Legal Notice for ANSYS proprietary software
and third-party software. If you are unable to access the Legal Notice, please contact ANSYS, Inc.
Published in the U.S.A.
http://ai_ginfo.pdf/http://ai_ginfo.pdf/ -
7/22/2019 Engineering Data Users Guide
3/44
Table of Contents
Basics of Engineering Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Overview .......... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
User Interface .......... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Menu Bar ......... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Toolbar ......... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Toolbox .......... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4Engineering Data SourcesPane .......... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Outline Pane .......... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Properties Pane .......... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Table Pane .......... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Chart Pane .......... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Working with Data Sources .......... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Working with Data .......... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Perform Basic Tasks in Engineering Data .......... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Material Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Definitions .......... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Sample Libraries ......... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Default Material Assignment for Model Parts ......... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16Supported Properties ......... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Electric ......... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Explicit Dynamics ......... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Harmonic ......... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Linear Buckling .......... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Magnetostatic ......... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Modal ......... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Random Vibration & Response Spectrum .......... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Static Structural & Modal (SAMCEF) ......... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Steady-State Thermal ......... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Thermal-Electric ......... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Static Structural & Transient Structural ......... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Rigid Dynamics ......... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Transient Thermal ......... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Suppression of Mutually Exclusive Properties ......... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Charting .......... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Validation .......... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Curve Fitting .......... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Perform Material Tasks in Engineering Data .......... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Material Property Support for the Mechanical Application .......... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Special Considerations .......... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Electromagnetic Material Properties ......... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Mutually Exclusive Properties ......... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31Mechanical Material Curve Fitting .......... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
CAD Materials ......... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Appendix A: Material Library File Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Index .......... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
iiRelease 14.5 - SAS IP, Inc. All rights reserved. - Contains proprietary and confidential informationof ANSYS, Inc. and its subsidiaries and affiliates.
-
7/22/2019 Engineering Data Users Guide
4/44
Release 14.5 - SAS IP, Inc. All rights reserved. - Contains proprietary and confidential informationof ANSYS, Inc. and its subsidiaries and affiliates.iv
-
7/22/2019 Engineering Data Users Guide
5/44
Basics of Engineering Data
The following topics cover the basics of using Engineering Data:Overview
User Interface
Working with Data Sources
Working with Data
Perform Basic Tasks in Engineering Data
Overview
Engineering Data is a resource for material properties used in an analysis system. Engineering Data can
be used as a repository for company or department data, such as material data libraries. The Engineering
Data workspace is designed to allow you to create, save, and retrieve material models, as well as tocreate libraries of data that can be saved and used in subsequent projects and by other users.
Engineering Data can be shown as a component system or as a cell in any Mechanical analysis system.
As a standalone component system, the workspace accesses all material models and properties by default.
When viewed as a cell in a Mechanical analysis system, the workspace shows the material models and
properties pertinent to that system's physics.
To access Engineering Data:
1. Insert an Engineering Data component system or a Mechanical system into the Project Schematic.
2. Select Edit from the Engineering Data cell's context menu, or double-click the cell.
3. The Engineering Data workspace appears. From here, you can navigate through the data for your ana-
lysis system, access external data sources, create new data, and store data for future use.
If you share an Engineering Data cell with one or more other analysis systems, be aware that changes
in one system will change the data for all systems with which the data is shared.
Definitions
The Engineering Data documentation makes use of the following terminology:
DefinitionTermThe cell of a system in the Project Schematic, which contains engineering data. The
default name is Engineering Data.
Engineering
Data
Also see the definition topic for individual topics:
Material Definitions
Release 14.5 - SAS IP, Inc. All rights reserved. - Contains proprietary and confidential informationof ANSYS, Inc. and its subsidiaries and affiliates.
-
7/22/2019 Engineering Data Users Guide
6/44
Modes of Operation
Data for an Analysis- You can create data or retrieve stored data which can then be assigned to the
model of the analysis system. You can also review, modify, and suppress the data used by an analysis
system.
Data Libraries- You can create, edit, and save a library made up of the data that you use most often.
This library can then be used in another project or analysis system.
The data contained in Engineering Data is automatically saved when the project is saved.
User Interface
The Engineering Data workspace is an integrated feature of Workbench and displays relevant items
based on the items you select (click) in the various panes.
Layout Reference
Presented below are two layout configurations for the Engineering Data view. The first configuration
is displayed by doing a right mouse click on the Engineering Data cell and selecting Editor you candouble click the Engineering Data cell. Click the Engineering Data Sources button ) to toggle back
and forth between the first and second configuration. You can further modify this configuration using
the Viewmenu.
Figure 1: Default Layout Configuration
Release 14.5 - SAS IP, Inc. All rights reserved. - Contains proprietary and confidential informationof ANSYS, Inc. and its subsidiaries and affiliates.2
Basics of Engineering Data
-
7/22/2019 Engineering Data Users Guide
7/44
Figure 2: Engineering Data Sources Toggled On
DescriptionNameLegend
Operations for Engineering Data and Project.Menu Bar (p. 3)A
Operations for Engineering Data and Project.Toolbar (p. 4)B
Data items that can be included into Engineering Data.Toolbox (p. 4)C
Displays the available data sources and their location, edit state
and description.
Engineering Data Sources
Pane (p. 5)
D
Displays the outline of the contents of the selected data source
in the Engineering Data Sourcespane or the contents of Engin-
eering Data.
Outline Pane (p. 5)E
Displays the properties of the selected item in the Outlinepane.Properties Pane (p. 7)F
Shows the tabular data for the selected item in the Properties
pane.
Table Pane (p. 8)G
Shows the chart of the item selected in the Propertiespane.Chart Pane (p. 9)H
Menu Bar
The following items in the menu bar are provided by Engineering Data or affect Engineering Data:
3Release 14.5 - SAS IP, Inc. All rights reserved. - Contains proprietary and confidential informationof ANSYS, Inc. and its subsidiaries and affiliates.
User Interface
-
7/22/2019 Engineering Data Users Guide
8/44
DescriptionSelection(s)Menu
Importsdata into the selected data
source. You must change a library
Import Engineering DataFile
data source to edit mode in order to
import it.
Exportsthe selected data source or
selected items to disk.
Export Engineering Data
Deletes the selected item.DeleteEdit
This ANSYS Workbench menu can be
used to adjust the panes you see
Various ChoicesView
while in the Engineering Data work-
space. See View Menuin the ANSYS
Workbench help.
This ANSYS Workbench menu can be
used to change the units you see
Various ChoicesUnits
while using Engineering Data. See
Units Menuin the ANSYS Workbench
help.This ANSYS Workbench menu can be
used to work with Extensionsor
Various ChoicesExtensions
view log files while in Engineering
Data. See Extensions Menuin the
ANSYS Workbench help.
This ANSYS Workbench menu
provides access to help information.
Various ChoicesHelp
Toolbar
The following item in the toolbar is provided by Engineering Data or affects Engineering Data:
DescriptionImage
Toggle to filter data based on the system(s) containing this Engineering Data. The
default is to filter this information (see Filtering (p. 11)).
Toolbox
Engineering Data will filter the Toolbox to those items which are applicable for the current selection.
For example, in the Layout Referencegraphic, the current selection is Structural Steel. The Toolbox
presents items in the following categories:
Material properties and models
Additional tabular data that can be added to a property or model
Curve fitting of data
Release 14.5 - SAS IP, Inc. All rights reserved. - Contains proprietary and confidential informationof ANSYS, Inc. and its subsidiaries and affiliates.4
Basics of Engineering Data
http://wb2_help.pdf/http://wb2_help.pdf/http://wb2_help.pdf/http://wb2_help.pdf/http://wb2_help.pdf/http://wb2_help.pdf/ -
7/22/2019 Engineering Data Users Guide
9/44
Engineering Data Sources Pane
The Engineering Data Sources pane provides the selection of a data source to be viewed in the
Outlinepane. This pane is used to manage data sources that you have available to you. It will always
show your (Libraries ) and Favorites ( ). You can perform the following actions in this pane:
Create a new library
Add an existing data source
Remove a data source from the list
Enable the editing of a data source
Save a data source
Edit Column
The edit column ( ) is used to mark a library for editing. When exiting edit mode, you will be
prompted to save the library.
Location Column
The location column shows a diskette button. Hold the mouse cursor over the diskette button to display
a tool tip that includes the path to the data source. If you are editing the data source, you may save to
the location ( ) (if the internal format is supported for export, see Exporting (p. 10)), or save as a dif-
ferent filename and/or location ( ). You may also load an existing library from file by clicking the file
open button (... ).
Outline Pane
The Outlinepane shows an outline of the contents of the selected data source. You can perform the
following actions in this pane:
Create a new material
Delete a material
Rename a material
Suppressa material
Add a description for a material
Add a material to the system from an external data source
Select a default material for the solid and or fluid parts of a model
Contents Column
The contents column shows the name of the items contained in the selected data source. The type and
status of the item is indicated by an icon to the left of the name.
5Release 14.5 - SAS IP, Inc. All rights reserved. - Contains proprietary and confidential informationof ANSYS, Inc. and its subsidiaries and affiliates.
User Interface
-
7/22/2019 Engineering Data Users Guide
10/44
Material
The status of the material is indicated as follows:
The data contained in this material is valid data (see the Validationand Filteringtopics).
Some data contained in this material requires attention (see the Validationand Filtering
topics).
Suppression Column
The suppression column ( ) shows the suppression status of the item and may also be used to switch
the status (see Suppression). This column is only displayed when the selected data source is Engineering
Data.
Add Columns
The add columns are used to add an item from an external data source to Engineering Data for the
system you are editing, and indicates if the item is included in Engineering Data. This column is only
displayed when the selected data source is other than Engineering Data. Click on the addition button
( ) to add the item to Engineering Data. When an item is included in Engineering Data it is indicated
by the presence of an icon ( ).
Default Column
The default column ( ) shows those items which will be included by default into Engineering Data
when it is created in a new system. This column is only displayed when the selected data source is Fa-
vorites.
Source Column
The source column shows the source of the data in that row and if it is linked to a file. Hold the mouse
cursor over the link icon to display a tool tip that includes the path to the linked source.
Linked Data
The status of the data contained in Engineering Data to the linked source is indicated as follows:
The data matches the data in the linked source.
The data doesn't match the data in the linked location. You may refresh from the linked
source using the context menu (right-click).The data could not be found in the linked source or the linked source is missing.
You have the option of viewing the linked source, refreshing from the linked source, or deleting the
link to the source by using the context menu (right-click).
Release 14.5 - SAS IP, Inc. All rights reserved. - Contains proprietary and confidential informationof ANSYS, Inc. and its subsidiaries and affiliates.6
Basics of Engineering Data
-
7/22/2019 Engineering Data Users Guide
11/44
Description Column
The description column displays the description for the item contained in the data source. Hold the
mouse cursor over the description to display a tool tip with the complete description. If the column is
too small, you may still see the contents without resizing.
Properties Pane
The Propertiespane shows the properties for the item selected in the Outlinepane. You can perform
the following actions in this pane:
Add additional properties, tabular data, or curve fitting (from the Toolbox)
Delete a property
Modify constant data
Suppressa property
Parameterize a property
Property Column
The property column lists the properties for the item selected in the Outlinepane. Selecting a property
will change the contents of the Tablepane and Chartpane. The type and status of the item is indicated
by an icon to the left of the name.
Material Property
The status of the material property is indicated as follows:
The material property is described in a single property data (see the Material Definitions
topic).
Some data contained in this material property requires attention (see the Validationand
Filtering topics).
The material property is described in a collection of property data (see the Material
Definitionstopic).
Indicates that the collection of property data requires attention (see the Validationand
Filtering topics).
Value Column
The value column is used to change data for a property or indicates that the data for the property istabular ( ). If the item selected in the Outlinepane is not editable this column will be shown disabled.
Unit Column
The unit column displays the unit of the data shown in the value column . If the column is editable (see
Units Menu), changing the unit will convert the value into the selected unit (there is no net change in
the data, so the solution is still valid).
7Release 14.5 - SAS IP, Inc. All rights reserved. - Contains proprietary and confidential informationof ANSYS, Inc. and its subsidiaries and affiliates.
User Interface
http://wb2_help.pdf/http://wb2_help.pdf/ -
7/22/2019 Engineering Data Users Guide
12/44
Suppression Column
The suppression column ( ) shows the suppression status of the item and may also be used to switch
the status (see Suppression (p. 11)).
Parameter Column
The parameter column ( ) shows the parameterization status of the item and may also be used to
switch the status (see Parameterize (p. 10)).
Table Pane
The Tablepane shows the tabular data for the item selected in the Propertiespane. If there are inde-
pendent variables (for example, Temperature) for the selected item and the item is constant, you may
change it to a table by entering a value into the independent variables data cell. If a row is shown with
an index of *, you may add additional rows of data. The data may be sorted by using the filter item in
the header of the column.
Tabular Data Filter
In Engineering Data, if a material property has more than one independent variable, one of those variables
will be chosen by Engineering Data to be a primary independent variable. All independent variables
excluding the primary independent variable are shown in the left pane and are used as a filter. The row
chosen in the left pane will filter the content in the right pane. This is shown in the figure below, the
filter is shown in the left panel, while the filtered contents are shown in the right panel.
The data is separated in this way to make it easier to visualize and modify but the data is maintained
in a single table by Engineering Data.
Release 14.5 - SAS IP, Inc. All rights reserved. - Contains proprietary and confidential informationof ANSYS, Inc. and its subsidiaries and affiliates.8
Basics of Engineering Data
-
7/22/2019 Engineering Data Users Guide
13/44
Charts
Select row in left pane to display chart only for filtered data.
Select column header or independent variable name in left pane, e.g. Mean Stress (Pa) above, to display
chart for all data.
Chart Pane
The Chartpane shows the chart of the selected item in the Propertiespane.
Working with Data Sources
A data source contains engineering data information. There are three types of data sources used in the
Engineering Data workspace: Engineering Data, Libraries, and Favorites. The Engineering Data data
source is the default view when accessing Engineering Data. The other data sources are viewed in the
Engineering Data Sources pane. The procedures for working with data sources are discussed in Perform
Basic Tasks in Engineering Data (p. 11).
Engineering DataEngineering Data is the source of the material information that is used for the analysis of the system it
is contained in. The information in an Engineering Data component system is used if shared to an
analysis system. Engineering Data allows you to view, edit, and add data for use in your analysis system.
Library
A library is the term used for a collection of engineering data. Engineering Data allows you to add a
library for viewing, editing, and adding additional data. To edit a library, select the check box to the
right of the library's title. You can add items from the library to Engineering Data for use in your analysis
system.
Favorites
The favorites ( ) data source is the location for those items that you use frequently and allows you to
mark items as defaults for a new analysis system. You can add items from other data sources to the
favorites using the context menu (right-click). You can add items from the favorites to Engineering Data
for use in your analysis system. Material defaults for newly created systems may be assigned in the
context menu (see Material Defaults).
Importing
You can import data into an existing data source (if it is editable) or import it as a library. The followingtypes of files are supported for import:
Engineering Data libraries exported from Workbench 9.0 to 11.0 SP1
Material(s) file following the MatML 3.1 schema
Material(s) file generated by AUTODYN
Import into Existing Source
9Release 14.5 - SAS IP, Inc. All rights reserved. - Contains proprietary and confidential informationof ANSYS, Inc. and its subsidiaries and affiliates.
Working with Data Sources
-
7/22/2019 Engineering Data Users Guide
14/44
When you use the Import Engineering Datamenu item, the data contained in that source will be added
to the currently selected data source (if edit enabled).
Import as Data Source
When you use the "..." open file dialog in the Engineering Data Sourcespane, the selected data source
will be added to the list of data sources.
Exporting
You can export a complete data source or the selected items in a data source. The following format is
supported for export:
MatML 3.1 schema for Material(s)
Working with Data
Modifying
You can modify both constant and tabular data.
Constant Data
You modify constant data by changing the value and/or unit of that data in the Propertiespane. The
value and unit together constitute one integral piece of information, or datum. The value is modified
by selecting the cell in the Valuecolumn and typing in the new value. If available, modifying the unit
will convert the value to correspond to the new unit (see Units Menu). If the value entered is not in the
acceptable range it will be indicated in yellow and will cause the state of the Engineering Data cell to
change to Attention Required.
Tabular Data
If the data is in a tabular format it is indicated in the Valuecolumn ( ). This data is modified in the
Tablepane and each datum is a value and unit as one integral piece. The value is modified by selecting
the cell in the variable column you want to change. If the value entered is not in the acceptable range,
it will be indicated in yellow and will cause the state of the Engineering Data cell to change to Attention
Required (see Validation (p. 24)). The unit is shown in the header, and if available, modifying the unit
will modify each datum for that variable to have the same unit (see Units Menu).
Parameterize
Data can be parameterized to allow it to be used in parametric studies and design points (see Design
Points). To parameterize an item in the Propertiespane, choose the check box in the parameter column
( ). The parameter value can then be changed in the Parameters and Design Points workspace. Use
caution when parameterizing data that is dependent on other data to maintain valid data. The paramet-
erized data is always calculated from the original values, so also use caution when modifying data in
the parameter workspace to avoid computer precision problems.
Constant Data
When you parameterize constant data, the constant data can be changed by the Parameter Workspace
but the original datum is not modified. The original datum is restored when the parameterization is
removed.
Release 14.5 - SAS IP, Inc. All rights reserved. - Contains proprietary and confidential informationof ANSYS, Inc. and its subsidiaries and affiliates.10
Basics of Engineering Data
http://wb2_help.pdf/http://wb2_help.pdf/http://wb2_help.pdf/http://wb2_help.pdf/http://wb2_help.pdf/http://wb2_help.pdf/http://wb2_help.pdf/http://wb2_help.pdf/ -
7/22/2019 Engineering Data Users Guide
15/44
-
7/22/2019 Engineering Data Users Guide
16/44
ProcedureTask
5. Select a file and choose Open.
Note
Only recognized data will be imported into the data source.
Import data as a data
source.
1. Access Engineering Data Sources.
2. Select the browse button (...) in the last row of the Engineering Data
Sourcespane.
3. Select a file and choose Open.
Note
Only recognized data will be imported.
Export a data source. 1. Access Engineering Data Sources.
2. Select a data source in the Engineering Data Sourcespane.
3. Choose File> Export Engineering Data....
4. In the Save Asdialog, select the folder, provide a filename, and choose
Save.
Export individual data. 1. Access Engineering Data Sources.
2. Select a data source in the Engineering Data Sourcespane.
3. Select one or more items in the Outlinepane.
4. Choose File> Export Engineering Data....
5. In the Save Asdialog, select the folder, provide a filename and choose
Save.
Note
Multiple items may be selected in the Outlinepane.
Combine data sources. 1. Perform the "Import Data as a data source" task for each of the data sources
you want to combine.
2. Perform the "Edit a data source" task to combine into an existing data source,
or perform the "Create a library" task to combine into a new library.
3. Select a data source.
Release 14.5 - SAS IP, Inc. All rights reserved. - Contains proprietary and confidential informationof ANSYS, Inc. and its subsidiaries and affiliates.12
Basics of Engineering Data
-
7/22/2019 Engineering Data Users Guide
17/44
ProcedureTask
4. From the Outlinepane drag the item of interest into theEngineering Data
Sourcespane and drop the item on the data source you want to combine.
5. Complete the above operation for all items of interest.
6. Choose the Savebutton ( ) in the Outline Filterpane.
13Release 14.5 - SAS IP, Inc. All rights reserved. - Contains proprietary and confidential informationof ANSYS, Inc. and its subsidiaries and affiliates.
Perform Basic Tasks in Engineering Data
-
7/22/2019 Engineering Data Users Guide
18/44
Release 14.5 - SAS IP, Inc. All rights reserved. - Contains proprietary and confidential informationof ANSYS, Inc. and its subsidiaries and affiliates.14
-
7/22/2019 Engineering Data Users Guide
19/44
Material Data
This section examines the function and use of material properties within Engineering Data.Definitions
Sample Libraries
Default Material Assignment for Model Parts
Supported Properties
Suppression of Mutually Exclusive Properties
Charting
Validation
Curve Fitting
Perform Material Tasks in Engineering Data
Material Property Support for the Mechanical Application
Mutually Exclusive Properties
Mechanical Material Curve Fitting
CAD Materials
Definitions
The documentation for Material Data makes use of the following terminology:
DefinitionTerm
This is the identifier for the singular information (for example, Density) that together with
other properties defines or models the behavior of the material. A property is always defined
Property
by at least one table (tabular data), which could be singular. Some properties can contain
a collection of tabular data (for example, Isotropic Elasticity).
This is the identifier for tabular data (for example, Young's Modulus).Property
data
Sample Libraries
Engineering Data provides sample material data categorized into several libraries. You must validate
that the data is consistent with the material you are using in your analysis. If you are viewing the library
in an analysis system, the contents of a material will be filtered to that system (see Filtering (p. 11)).
The samples are part of the installation and are located in the path ANSYS
Inc.\v145\Addins\EngineeringData\Language\\Samples.
The following libraries are included:
General Materials,
This is a library of general use materials and consists mostly of metals that can be used in various anal
General Nonlinear Materials,
This is a library of general use nonlinear materials for performing nonlinear analyses.
15Release 14.5 - SAS IP, Inc. All rights reserved. - Contains proprietary and confidential informationof ANSYS, Inc. and its subsidiaries and affiliates.
-
7/22/2019 Engineering Data Users Guide
20/44
Explicit Materials,
This is a library of materials containing data, specific for use in an explicit dynamics analysis.
Hyperelastic Materials,
This is a library of "materials" containing stress strain data which can be used to experiment with curve
fitting (see the Curve Fitting (p. 24) topic). The data doesn't correspond to any particular material.
Magnetic B-H Curves,
This is a library of materials containing B-H Curve data, specific for use in a magnetic analysis.
Thermal Materials,
This is a library of materials containing data, specific for use in a thermal analysis.
Default Material Assignment for Model Parts
Engineering Data is configured at installation with the default material assignments as Structural Steel
for solid parts and as Air for fluid parts. You can change these defaults or remove the default for an
individual analysis system or for each newly created analysis system. If the Engineering Data cell is
shared and the default is changed, the first Model cell Edit action uses the current default.
To change the default settings for each newly created analysis system, access Favorites, select the ma-terial you want to use as the default, and change the context menu selection for Default Solid Mater-
ialor Default Fluid/Field Material. You can also choose to not have a default material by selecting
the current default and removing the selection in the context menu. Including and setting that material
as the default for the Model (or not setting the default) will affect all subsequent systems created in
the project.
To change the default settings in an analysis system (before the Model cell is edited), in the Outline
pane, choose the material that you want to assign as the default to the model parts and change the
selection in the context menu for Default Solid Material for Modelor Default Fluid/Field Material
for Model. You can also choose to not have a default material assigned to the model parts by selecting
the current default and removing the selection in the context menu.
You can replace a default material assignment in the Model by deleting the default material and then
refreshing the Model, which will assign the active default material.
Supported Properties
The supported material properties are defined by the analysis system(s) that contains or shares the
Engineering Data cell. If filtering is active (see Filtering (p. 11)), you will only see the supported material
properties. See the list of material properties supported by a given analysis system in the following
sections. The minimum material properties required for a given analysis are marked with an asterisk (*).
Select the link to read more information about a particular property. If temperature dependency is
supported, the material property will be marked with f(T).
Electric
Explicit Dynamics
Harmonic
Linear Buckling
Magnetostatic
Modal
Rigid Dynamics
Static Structural & Transient Structural
Release 14.5 - SAS IP, Inc. All rights reserved. - Contains proprietary and confidential informationof ANSYS, Inc. and its subsidiaries and affiliates.16
Material Data
-
7/22/2019 Engineering Data Users Guide
21/44
Static Structural & Modal (SAMCEF)
Steady-State Thermal
Thermal-Electric
Transient Thermal
Random Vibration & Response Spectrum
Electric
Properties
*Isotropic
Resistivity
Orthotropic
Resistivity
Explicit Dynamics
Properties
Density
Isotropic ElasticityOrthotropic Elasticity
Viscoelastic
Bilinear Isotropic Hardening
Multilinear Isotropic Hardening
Bilinear Kinematic Hardening
Multilinear Kinematic Hardening
Johnson Cook Strength
Cowper Symonds Strength
Steinberg Guinan Strength
Zerilli Armstrong Strength
Neo-Hookean
Mooney-Rivlin (2, 3, 5, and 9 Parameter) f(T)
Polynomial (1st, 2nd, and 3rd Order)
Yeoh (1st, 2nd, and 3rd Order)
Ogden (1st, 2nd, and 3rd Order)
Specific Heat
Drucker-Prager Strength Linear
Drucker-Prager Strength Stassi
Drucker-Prager Strength Piecewise
Johnson-Holmquist Strength Continuous
Johnson-Holmquist Strength Segmented
RHT Concrete Strength
MO GranularBulk Modulus
Shear Modulus
Polynomial EOS
Shock EOS Linear
Shock EOS Bilinear
Crushable Foam
Compaction EOS Linear
Compaction EOS Non-Linear
P-alpha EOS
17Release 14.5 - SAS IP, Inc. All rights reserved. - Contains proprietary and confidential informationof ANSYS, Inc. and its subsidiaries and affiliates.
Supported Properties
http://ans_mat.pdf/http://ans_mat.pdf/http://ans_mat.pdf/http://ans_mat.pdf/http://ans_mat.pdf/http://ans_mat.pdf/http://ans_mat.pdf/http://ans_mat.pdf/ -
7/22/2019 Engineering Data Users Guide
22/44
Properties
Plastic Strain Failure
Principal Stress Failure
Principal Strain Failure
Stochastic Failure
Tensile Pressure Failure
Crack Softening Failure
Johnson Cook FailureGrady Spall Failure
Specific Heat
Explosive JWL
Explosive JWL Miller
Ideal Gas EOS
See Appendix Ffor a description of the above properties.
Orthotropic Stress Limits
Orthotropic Strain Limits
Tsai-Wu Constants
Tsai-Wu Constants must be used in conjunction with Orthotropic Stress Limit. Tsai-Wu Constants
used in conjunction with Orthotropic Strain Limit are not supported.
Harmonic
Properties
*Density f(T)
Damping Factor ()
Damping Factor ()
Constant Damping Coefficient
*Isotropic Elasticity f(T)Orthotropic Elasticity f(T)
See Linear Material Properties in the Material Reference for a description of the above properties.
Anisotropic Elasticity
Hyperelastic Material Modelsare supported for pre-stress modal based analysis but not for pure
modal based analysis.
Linear Buckling
Properties
*Density f(T)
*Isotropic Elasticity f(T)
Orthotropic Elasticity f(T)
See Linear Material Properties in the Material Reference for a description of the above properties.
Anisotropic Elasticity
Orthotropic Stress Limits
Release 14.5 - SAS IP, Inc. All rights reserved. - Contains proprietary and confidential informationof ANSYS, Inc. and its subsidiaries and affiliates.18
Material Data
http://wb_sim.pdf/http://wb_sim.pdf/http://wb_sim.pdf/http://wb_sim.pdf/http://ans_str.pdf/http://ans_str.pdf/http://ans_str.pdf/http://ans_str.pdf/http://ans_str.pdf/http://ans_str.pdf/http://ans_str.pdf/http://ans_mat.pdf/http://ans_mat.pdf/http://wb_eda.pdf/http://ans_mat.pdf/http://ans_mat.pdf/http://ans_mat.pdf/http://ans_mat.pdf/http://ans_mat.pdf/http://ans_mat.pdf/http://wb_eda.pdf/http://ans_mat.pdf/http://ans_mat.pdf/http://ans_str.pdf/http://ans_str.pdf/http://ans_str.pdf/http://wb_sim.pdf/http://wb_sim.pdf/http://wb_sim.pdf/http://wb_sim.pdf/ -
7/22/2019 Engineering Data Users Guide
23/44
Properties
Orthotropic Strain Limits
Tsai-Wu Constants
Puck Constants
LaRc03/04 Constants
Superelasticity
Shape Memory Alloy
The above shape memory alloy material model properties are supported only for pre-stress
analysis.
Gasket Material Model is supported for pre-stress analysis.
Magnetostatic
Properties
*Relative Permeability
Coercive Force & Residual Induction
B-H CurveDemagnetization B-H Curve
Relative Permeability (Orthotropic)
*Isotropic Resistivity
Orthotropic Resistivity
See Electromagnetic Material Properties (p. 29)for a description of the above
properties.
Modal
Properties
*Density f(T )
Damping Factor ()
Damping Factor ()
Constant Damping Coefficient
Coefficient of Thermal Expansion f(T)
*Isotropic Elasticity f(T)
Orthotropic Elasticity f(T)
See Linear Material Properties in the Material Reference for a description of the above properties.
Anisotropic Elasticity
Bilinear Isotropic Hardening f(T)Bilinear Kinematic Hardening f(T)
Multilinear Isotropic Hardening f(T)
Multilinear Kinematic Hardening f(T)
Chaboche Kinematic Hardening f(T)
Anand Viscoplasticity
Orthotropic Stress Limits
Orthotropic Strain Limits
Tsai-Wu Constants
19Release 14.5 - SAS IP, Inc. All rights reserved. - Contains proprietary and confidential informationof ANSYS, Inc. and its subsidiaries and affiliates.
Supported Properties
http://ans_mat.pdf/http://ans_mat.pdf/http://ans_mat.pdf/http://ans_mat.pdf/http://ans_mat.pdf/http://ans_mat.pdf/http://ans_str.pdf/http://ans_str.pdf/http://ans_str.pdf/http://ans_str.pdf/http://ans_str.pdf/http://ans_str.pdf/http://ans_str.pdf/http://ans_mat.pdf/http://ans_mat.pdf/http://ans_mat.pdf/http://ans_mat.pdf/http://ans_mat.pdf/http://ans_mat.pdf/http://ans_mat.pdf/http://ans_thry.pdf/http://ans_mat.pdf/http://ans_mat.pdf/http://ans_mat.pdf/http://ans_mat.pdf/http://ans_mat.pdf/http://ans_mat.pdf/http://ans_thry.pdf/http://ans_mat.pdf/http://ans_mat.pdf/http://ans_mat.pdf/http://ans_mat.pdf/http://ans_mat.pdf/http://ans_mat.pdf/http://ans_mat.pdf/http://ans_str.pdf/http://ans_str.pdf/http://ans_str.pdf/http://ans_mat.pdf/http://ans_mat.pdf/http://ans_mat.pdf/http://ans_mat.pdf/http://ans_mat.pdf/http://ans_mat.pdf/ -
7/22/2019 Engineering Data Users Guide
24/44
Properties
Puck Constants
LaRc03/04 Constants
Superelasticity
Shape Memory Alloy
The above shape memory alloy material model properties are supported for pre-stress modal analysis
but not for pure modal analysis.
Gasket Material Model is supported for pre-stress modal analysis but not for pure modal analysis.
Hyperelastic Material Modelsare supported for pre-stress modal analysis but not for pure modal
analysis.
Random Vibration & Response Spectrum
Properties
*Density f(T)
Damping Factor ()Damping Factor ()
Constant Damping Coefficient
Coefficient of Thermal Expansion f(T)
*Isotropic Elasticity f(T)
Orthotropic Elasticity f(T)
See Linear Material Properties in the Material Reference for a description of the above properties.
Anisotropic Elasticity
Bilinear Isotropic Hardening f(T)
Bilinear Kinematic Hardening f(T)
Multilinear Isotropic Hardening f(T)Multilinear Kinematic Hardening f(T)
Chaboche Kinematic Hardening f(T)
Anand Viscoplasticity
Orthotropic Stress Limits
Orthotropic Strain Limits
Tsai-Wu Constants
Puck Constants
LaRc03/04 Constants
Superelasticity
Shape Memory Alloy
The above shape memory alloy material model properties are supported for pre-stress modal based
analysis but not for pure modal based analysis.
Gasket Material Model is supported for pre-stress modal based analysis but not for pure modal based
analysis.
Hyperelastic Material Modelsare supported for pre-stress modal based analysis but not for pure
modal based analysis.
Release 14.5 - SAS IP, Inc. All rights reserved. - Contains proprietary and confidential informationof ANSYS, Inc. and its subsidiaries and affiliates.20
Material Data
http://ans_mat.pdf/http://ans_mat.pdf/http://ans_mat.pdf/http://ans_mat.pdf/http://ans_str.pdf/http://ans_str.pdf/http://ans_str.pdf/http://ans_str.pdf/http://ans_str.pdf/http://ans_str.pdf/http://ans_str.pdf/http://ans_mat.pdf/http://ans_mat.pdf/http://ans_mat.pdf/http://ans_mat.pdf/http://ans_mat.pdf/http://ans_mat.pdf/http://ans_thry.pdf/http://ans_mat.pdf/http://ans_mat.pdf/http://ans_mat.pdf/http://ans_mat.pdf/http://ans_mat.pdf/http://ans_mat.pdf/http://ans_mat.pdf/http://ans_mat.pdf/http://ans_mat.pdf/http://ans_mat.pdf/http://ans_mat.pdf/http://ans_mat.pdf/http://ans_mat.pdf/http://ans_mat.pdf/http://ans_thry.pdf/http://ans_mat.pdf/http://ans_mat.pdf/http://ans_mat.pdf/http://ans_mat.pdf/http://ans_mat.pdf/http://ans_mat.pdf/http://ans_str.pdf/http://ans_str.pdf/http://ans_str.pdf/http://ans_mat.pdf/http://ans_mat.pdf/http://ans_mat.pdf/http://ans_mat.pdf/ -
7/22/2019 Engineering Data Users Guide
25/44
Static Structural & Modal (SAMCEF)
Properties
Density f(T)
Isotropic Secant Coefficient of Thermal Expansion f(T)
Orthoropic Secant Coefficient of Thermal Expansion f(T)
*Isotropic Elasticity f(T)
Orthotropic Elasticity f(T)Bilinear Isotropic Hardening f(T)
Bilinear Kinematic Hardening f(T)
Multilinear Isotropic Hardening f(T)
Multilinear Kinematic Hardening f(T)
Chaboche Kinematic Hardening
Nonlinear Elastic Model with Damage
Plakin Special Hardening Law
Refer to the SAMCEF documentation for a description of the above
properties.
Steady-State Thermal
Properties
*Isotropic Thermal Conductivity f( T)
Orthotropic Thermal Conductivity f( T)
See Linear Material Properties in the Material Reference for a description of the above
properties.
Thermal-Electric
Properties
*Isotropic Thermal Conductivity f(T )
Orthotropic Thermal
Conductivity f(T)
*Isotropic Resistivity
Orthotropic Resistivity
Seebeck Coefficient
Orthotropic Seebeck Coefficient
See Linear Material Properties in the Material Reference for a description of the above
properties.
Static Structural & Transient Structural
Properties
*Density f(T )
Damping Factor () (Transient Structural only)
Damping Factor () (Transient Structural only)
Constant Damping Coefficient (Transient Structural only)
Coefficient of Thermal Expansion f(T)
2Release 14.5 - SAS IP, Inc. All rights reserved. - Contains proprietary and confidential informationof ANSYS, Inc. and its subsidiaries and affiliates.
Supported Properties
http://ans_mat.pdf/http://ans_mat.pdf/http://ans_mat.pdf/http://ans_mat.pdf/http://ans_str.pdf/http://ans_str.pdf/http://ans_str.pdf/http://ans_str.pdf/http://ans_str.pdf/http://ans_str.pdf/http://ans_str.pdf/http://ans_str.pdf/http://ans_str.pdf/http://ans_str.pdf/http://ans_mat.pdf/http://ans_mat.pdf/http://ans_mat.pdf/http://ans_mat.pdf/ -
7/22/2019 Engineering Data Users Guide
26/44
Properties
*Isotropic Elasticity f(T)
Orthotropic Elasticity f(T)
See Linear Material Properties in the Material Reference for a description of the above
properties.
Anisotropic ElasticityMooney-Rivlin (2, 3, 5, and 9 Parameter) f(T)
Neo-Hookean f(T)
Polynomial (1st, 2nd, and 3rd Order) f(T)
Yeoh (1st, 2nd, and 3rd Order) f(T)
Ogden (1st, 2nd, and 3rd Order) f(T)
Arruda-Boyce f(T)
Gent f(T)
Blatz-Ko f(T)
Response Function
Ogden Foam (1st, 2nd, and 3rd Order) f(T)
Extended Tube f(T)
Mullins Effect f(T)Bilinear Isotropic Hardening f(T)
Bilinear Kinematic Hardening f(T)
Multilinear Isotropic Hardening f(T)
Multilinear Kinematic Hardening f(T)
Chaboche Kinematic Hardening f(T)
Anand Viscoplasticity
Alternating Stress Mean Stress
Alternating Stress R-Ratio
Strain-Life Parameters
Prony Shear Relaxation
Prony Volumetric Relaxation
Williams-Landel-Ferry Shift Function
Tool-Narayanaswamy Shift Function
Tool-Narayanaswamy with Fictive Temperature Shift Function
See Fatigue Material Propertiesfor a description of the above properties.
Tensile Yield Strength
Compressive Yield Strength
Tensile Ultimate Strength
Compressive Ultimate Strength
See Stress Toolsfor a description of the above properties.
Gasket Model
Strain Hardening
Time Hardening
Generalized Exponential
Generalized Graham
Generalized Blackburn
Modified Time Hardening
Modified Strain Hardening
Release 14.5 - SAS IP, Inc. All rights reserved. - Contains proprietary and confidential informationof ANSYS, Inc. and its subsidiaries and affiliates.22
Material Data
http://ans_mat.pdf/http://ans_mat.pdf/http://ans_mat.pdf/http://ans_mat.pdf/http://ans_mat.pdf/http://ans_mat.pdf/http://ans_thry.pdf/http://ans_mat.pdf/http://ans_mat.pdf/http://ans_mat.pdf/http://ans_mat.pdf/http://ans_mat.pdf/http://wb_sim.pdf/http://wb_sim.pdf/http://wb_sim.pdf/http://wb_sim.pdf/http://ans_mat.pdf/http://ans_mat.pdf/http://ans_mat.pdf/http://ans_mat.pdf/http://ans_mat.pdf/http://ans_thry.pdf/http://ans_mat.pdf/http://ans_mat.pdf/http://ans_mat.pdf/http://ans_mat.pdf/http://ans_mat.pdf/http://ans_mat.pdf/ -
7/22/2019 Engineering Data Users Guide
27/44
Properties
Generalized Garofalo
Exponential form
Norton
Combined Time Hardening
Rational polynomial
Generalized Time Hardening
See Implicit Creep Equationsfor a description of the above properties.
Orthotropic Stress Limits
Orthotropic Strain Limits
Tsai-Wu Constants
Puck Constants
LaRc03/04 Constants
Superelasticity
Shape Memory Alloy
Damage Initiation Criteria
Damage Evolution Law
Rigid Dynamics
Proper-
ties
*Density
Transient Thermal
Properties
*Density f(T )
*Isotropic Thermal Conductivity f( T)
Orthotropic Thermal Conductivity f( T)
*Specific Heat f(T)
Enthalpy f(T)
See Linear Material Properties in the Material Reference for a description of the above
properties.
Suppression of Mutually Exclusive Properties
Some properties are mutually exclusive of each other and require that only one property in the mutuallyexclusive set be unsuppressed. The addition or removing of the suppression for one of these properties
automatically suppresses the other mutually exclusive properties.
For example, defining Bilinear Isotropic Hardening and Multilinear Isotropic Hardening for the same
material represents redundant plasticity behavior. Only one behavior can be active for the material.
When such a conflict occurs, the property defined last is used and the previously defined, conflicting
property is automatically suppressed.
23Release 14.5 - SAS IP, Inc. All rights reserved. - Contains proprietary and confidential informationof ANSYS, Inc. and its subsidiaries and affiliates.
Suppression of Mutually Exclusive Properties
http://ans_mat.pdf/http://ans_mat.pdf/http://ans_mat.pdf/http://ans_mat.pdf/http://ans_mat.pdf/http://ans_mat.pdf/http://ans_mat.pdf/http://ans_mat.pdf/http://ans_mat.pdf/http://ans_mat.pdf/http://ans_mat.pdf/http://ans_mat.pdf/http://ans_mat.pdf/http://ans_mat.pdf/http://ans_mat.pdf/http://ans_mat.pdf/http://ans_mat.pdf/http://ans_mat.pdf/http://ans_mat.pdf/http://ans_mat.pdf/http://ans_mat.pdf/http://ans_mat.pdf/ -
7/22/2019 Engineering Data Users Guide
28/44
Charting
The axis range can be modified on a chart by choosing Edit Properties from the axis context menu
(see Setting Chart Properties). This range will be used when generating the x-y data for the chart so
that you can examine the data beyond the default range.
Validation
The user interface will indicate invalid data by showing a yellow background and changing the state
of the material to attention required. To find the reason for the data being invalid, choose Display
Validation Failure from the context menu of the invalid item.
Curve Fitting
When curve fitting is available for a selected item in Engineering Data a Curve Fittinggroup will be
accessible in the ANSYS Workbench Toolbox. A curve fitting module can then be added to the selected
item. The data that can be used for the curve fitting module will be shown, regardless of whether or
not the data is available. If the required data is not available it should be added from the Toolbox. The
data used for curve fitting can be suppressed (in some instances), in the curve fitting module, to prevent
its use in the curve fitting calculations. The curve fitting solution is done by choosing Solve Curve Fit
in the context menu for Curve Fitting, in the Properties pane. You can then visually compare the fitted
curve to the original data in the Chart pane. Once you are satisfied with the solution you can then
choose Copy Calculated Values to Property in the context menu.
Note
Curve Fitting is only active for the running session. If you exit the application you will have
to add the curve fitting module again. You should be sure to Copy Calculated Values to
Property to maintain the calculated information.
Note
If the active unit system for the project is changed, the current Curve Fittingmodules in
the project will be recreated using the new unit system. This will result in the seed values
being reset to their default values.
Note
Note: If the experimental data is parametrized, the current design point parameter value
will be used for the computations when choosing Solve Curve Fit, but will have no effect
for other design points when updating a project, because of the interactive nature of per-forming the fitting.
Curve fitting is specific to a given solver and so the following topics provide specific information:
Mechanical Material Curve Fitting (p. 33)
Perform Material Tasks in Engineering Data (p. 25)
Release 14.5 - SAS IP, Inc. All rights reserved. - Contains proprietary and confidential informationof ANSYS, Inc. and its subsidiaries and affiliates.24
Material Data
http://wb2_help.pdf/http://wb2_help.pdf/ -
7/22/2019 Engineering Data Users Guide
29/44
Curve Fitting Icons
Module for performing curve fitting.
Indicates that this curve fitting module requires attention.
Perform Material Tasks in Engineering DataAll material related tasks require that you perform the following basic tasks:
Access Engineering Data
If desired to perform tasks on libraries or favorites select a data source in the Engineering Data Sources
pane. Mark the data source as editable if needed (see the Edit a data sourcebasic task).
ProcedureTask
Create New Material. 1. In the Outlinepane click in the cell marked as Click here to add a new
material.
2. Type in the name of the new material and press Enter.
Add Material Properties. 1. Select the material in the Outlinepane that is to receive the additional
property.
2. Double-click the property in the Toolbox that you want to add.
Delete Material Proper-
ties.
1. Select the material in the Outlinepane whose property is to be deleted.
2. Select the material property in the Propertiespane.
3. Right-click and choose Deleteor on the menu bar, choose Edit> Delete.
Modify Material Proper-
ties.
1. Select the material in the Outlinepane that contains the property you
want to modify.
2. In the Propertiespane change the value or unit for constant data.
3. Perform one of the following:
For constant data, change the value or unit in the Propertiespane.
For tabular data, change the value or unit(s) in the Tablepane.
Parameterize Material
Properties.
1. Select the material in the Outlinepane that contains the property you
want to parameterize.
2. Select the check box in the parameter column for the property you want
to parameterize. For tabular data, use scale and/or offset (see Parameter-
ize (p. 10)).
25Release 14.5 - SAS IP, Inc. All rights reserved. - Contains proprietary and confidential informationof ANSYS, Inc. and its subsidiaries and affiliates.
Perform Material Tasks in Engineering Data
-
7/22/2019 Engineering Data Users Guide
30/44
ProcedureTask
Suppress Material Prop-
erties
1. Select the material in the Outlinepane that contains the property you
want to suppress.
2. Select the check box in the suppression column for the property you want
to suppress.
Select Material Defaultfor the Model
1. Select the material in the Outlinepane that is to be used as the defaultfor the Model cell.
2. Right-click and choose Default Solid Material for Model or Default Fluid/Field
Material for Model.
Note: This default setting applies only to the Engineering Data cell in
which it is set (see Material Defaults).
Curve Fitting of Material
Models
1. Select a material model that supports curve fitting. The option for perform-
ing a curve fit is indicated by the "Curve Fitting" group in the Toolbox (see
Curve Fitting).
2. Modify options for the curve fitting calculations.
3. Suppress any experimental data to exclude from the curve fitting calcula-
tions.
4. Select the Curve Fitting item in the Properties pane and select Solve Curve
Fit in the context menu.
5. Review the accuracy of the fitted data to the experimental data.
6. Select the Curve Fitting item in the Properties pane and select Copy Calcu-
lated Values To Property.
Material Property Support for the Mechanical Application
You should choose your material properties based on how the material exhibits properties in orthogonal
directions (X, Y, and Z), either constant in all directions (isotropic behavior) or different in orthogonal
directions (orthotropic behavior). These orthogonal directions in a part, by default, align with the
global coordinate system. You may apply a local coordinate system to the part to change the directions.
For orthotropic properties, the X, Y, and Z value must be specified for the model to solve (2-D models
only use the X and Y values). Those properties which support isotropic or orthotropic behavior will be
preceded by Isotropicor Orthotropic(for example, Isotropic Thermal Conductivity).
Temperature-dependent properties (the identifier f(T)will be shown beside the property) are input as
tabular data (value vs. temperature). During solution, the material properties are evaluated for the
temperature of the integration points of the elements. If the temperature of an integration point falls
below or rises above the defined temperature range of tabular data, the solver assumes the defined
extreme minimum or maximum value, respectively, for the material property outside the defined range.
Release 14.5 - SAS IP, Inc. All rights reserved. - Contains proprietary and confidential informationof ANSYS, Inc. and its subsidiaries and affiliates.26
Material Data
-
7/22/2019 Engineering Data Users Guide
31/44
Special Considerations
In some instances, the Mechanical APDL application material properties are restricted in functionality,
or the Mechanical application uses them in a specific way.
Linear Material Models
Coefficient of Thermal Expansion
You can define the coefficient of thermal expansion using the secant or instantaneous method. For
more information on this topic, see the discussion Linear Material Properties in the Material Reference.
When the coefficient of thermal expansion is defined using the secant method, the reference temper-
ature is the temperature that the thermal strains are measured from and is used to adjust the tem-
perature-dependent curve to the reference temperature of the body it is used in. Its value is determined
by the MPAMODcommand in the Mechanical APDL application, and written as the MPAMOD command
in the ds.dat file. The coefficient of thermal expansion values are computed according to the equation
documented inTemperature-Dependent Coefficient of Thermal Expansionlocated in the Mechanical
APDL Theory Reference.
Anisotropic Elasticity
You can define an anisotropic elasticity model by entering the stiffness terms in an elastic coefficient
matrix [D]. The following graphic show the location of the terms for this symmetric matrix:
D11
D22D21
D33D32D31
D44D43D42D41
D55D54D53D52D51
D66D65D64D63D62D61
Each row corresponds to the terms of x, y, z, xy, yz, xz. The stiffness terms must be positive definite
(requiring all determinants to be positive). The stiffness terms have units of Force/Area operating on
the strain vector.
Material Models with Nonlinear Behavior
Material models which have nonlinear behavior do not allow for conversion of data from one unit system
to another. For these material models you will specify the units of the data in the Reference Units
drop-down list. In Mechanical if an attempt is made to solve the solution, in a unit system which is not
compatible with the Reference Units, an error will be shown and the solution will be stopped. The
following material models have this restriction:
Anand Viscoplasticity
William-Landel-Ferry Shift Function
Tool-Narayanaswamy Shift Function
Tool-Narayanaswamy w/ Fictive Temperature Shift Function
Chaboche Kinematic Hardening
27Release 14.5 - SAS IP, Inc. All rights reserved. - Contains proprietary and confidential informationof ANSYS, Inc. and its subsidiaries and affiliates.
Material Property Support for the Mechanical Application
http://ans_mat.pdf/http://ans_mat.pdf/http://ans_cmd.pdf/http://ans_thry.pdf/http://ans_thry.pdf/http://ans_thry.pdf/http://ans_thry.pdf/http://ans_thry.pdf/http://ans_thry.pdf/http://ans_cmd.pdf/http://ans_mat.pdf/http://ans_mat.pdf/ -
7/22/2019 Engineering Data Users Guide
32/44
The chaboche kinematic hardening material model can be defined with respect to temperature and
allows up to five kinematic models for each temperature. It is required that all kinematic models be
defined for each temperature. You can specify the number of kinematic models in the drop down
list. This will add additional columns for entering the data. For additional information, see the
Mechanical APDL application discussion of the Chaboche Kinematic Hardening f(T).
Hyperelastic Material Models
Hyperelasticity can be used to analyze rubber-like materials (elastomers) that undergo large strains and
displacements, with small volume changes (nearly incompressible materials). Large strain theory is re-
quired (in the Mechanical application, set Large Deflection to On).
The hyperelastic material models are isotropic and constant with respect to temperature. The hypere-
lastic materials are also assumed to be nearly or purely incompressible. Thermal expansion, in the ma-
terial, is also assumed to be isotropic.
Experimental testing data can be input for a material, and then using the curve fitting module (see
Curve Fitting (p. 24)), calculate coefficients for various hyperelastic material models. Another option is
to make use of the Response Function which allows the use of experimental testing data and the
definition of incompressibility parameters. The definition of the incompressibility parameters is sequential
and associated with a given index. To delete values requires that they be deleted from the end of the
sequence.
Mullins effect is used for modeling load-induced changes to constitutive response exhibited by some
hyperelastic materials. Mullins Effect should be used in conjunction with a hyperelastic material model
except for Blatz-Ko and Ogden Foam models.
For additional information on these hyperelastic models see the Mechanical APDL application discussion
of Hyperelastic Material Models in the Material Reference.
Gasket Material Model
A gasket material model is used to analyze structural components that have a sealing component
between them. For additional information on the gasket model see the Mechanical APDL application
discussion of Gasket Material Model in the Material Reference. The gasket is defined by a compression
load closure curve, unloading data (linear or nonlinear), and optionally transverse shear and the maximum
tension stress. The gasket can additionally be defined at different temperature values by adding an
additional Data Set, found in the Gasket-Additional Datacategory of the Toolboxview for each
temperature.
The compression load closure curve defines the pressure in the material at given closure values. To
enter this data select the Compression item and enter the data in the Tableview.
The unloading data can be entered as linear or nonlinear data. To add unloading data, choose LinearUnloadingor Nonlinear Unloading, found in the Gasket-Additional Datacategory of the Toolbox
view. When choosing linear unloading multiple curves are entered into each row of the table in the
Tableview. If nonlinear unloading is chosen each individual unloading curve is added from the Toolbox
and then the data is added in the Tableview.
To optionally define the maximum tension stress, add Gasket Parameters, found in the Gasket-Addi-
tional Datacategory of the Toolboxview.
To optionally define the transverse shear, add Transverse Shear, found in the Gasket-Additional Data
category of the Toolboxview.
Release 14.5 - SAS IP, Inc. All rights reserved. - Contains proprietary and confidential informationof ANSYS, Inc. and its subsidiaries and affiliates.28
Material Data
http://ans_mat.pdf/http://ans_mat.pdf/http://ans_mat.pdf/http://ans_mat.pdf/http://ans_mat.pdf/http://ans_mat.pdf/http://ans_mat.pdf/http://ans_mat.pdf/http://ans_mat.pdf/http://ans_mat.pdf/ -
7/22/2019 Engineering Data Users Guide
33/44
Charts
Select Data Setnode in Properties Pane to display chart for all the data defined for specific data set or
temperature value.
Select Gasket Modelproperty node in Properties Pane to display all the gasket data. Each data set is
displayed in unique color and associated temperature value can be seen in the chart legend.
Creep Material Models
A creep material model is used to analyze structural components that experience rate-dependent ma-
terial nonlinearities in which the material continues to deform under a constant load. For additional
information on the creep models see the Mechanical APDL application discussion of Creep in the
Mechanical APDL Material Reference in the Material Reference. For these material models you will specify
the units of the data in the Reference Unitsdrop-down list. In Mechanical, if an attempt is made to
solve the solution, in a unit system which is not compatible with the Reference Units, an error will be
shown and the solution will be stopped.
Puck Material Model
The Puck material model is used to analyze the failure of a material in a laminate. In some situations
you may not have experimental data for the Puck parameters but can classify the material as a glass
or carbon. You can choose the Puck material classification from a drop-down menu and the appropriate
data will be filled in. The possible entries are as follows: Material Specific, Glass, or Carbon. Material
Specific is the default selection.
Electromagnetic Material Properties
Linear Soft Magnetic Material
This classification characterizes magnetic material assuming a constant permeability, that is, no satur-
ation effects. Permeability is simply defined as the ratio of B to H: = B/H. Permeability is more easilyexpressed in terms of relative and free-space values: = or. Free-space permeability, o, is equal
to 4e-07 H/m. Relative permeability, r is a multiplier of free-space permeability. Free-space permeab-
ility is defined internally within the program. You are required to supply a relative permeability value.
This classification is applicable to nonmagnetic material such as air, copper, aluminum. It can also be
used as an approximation to magnetic materials when a B-H curve is not available. If the material
exhibits constant properties in all directions (isotropic behavior) then select Relative Permeability
and enter the appropriate value. If the material exhibits different permeability in different orthogonal
directions (orthotropic), then select Relative Permeability (Orthotropic)and enter values for three
orthogonal directions (X, Y, Z). By default, the global coordinate system is used when the material is
applied to a part in the Mechanical application. If desired, you can apply a local coordinate system
to the part. The material orthogonal properties will align with the coordinate system assigned to the
part. For orthotropic material properties, all property values must be entered for the model to properly
solve.
Linear Hard Magnetic Material
This classification characterizes hard magnetic materials such as permanent magnets. The demagnet-
ization curve of the permanent magnet is assumed to have a constant slope. The demagnetization
curve intersects the H axis at a value corresponding to the coercive force, H c. The curve also intersects
the B-axis at a value corresponding to the residual induction, Br. You must enter the Coercive Force
and Residual Inductionvalues. (Use a positive value for the Coercive Force). A permanent magnet
29Release 14.5 - SAS IP, Inc. All rights reserved. - Contains proprietary and confidential informationof ANSYS, Inc. and its subsidiaries and affiliates.
Material Property Support for the Mechanical Application
http://ans_mat.pdf/http://ans_mat.pdf/http://ans_mat.pdf/http://wb_sim.pdf/http://wb_sim.pdf/http://ans_mat.pdf/http://ans_mat.pdf/http://ans_mat.pdf/ -
7/22/2019 Engineering Data Users Guide
34/44
is polarized along an axis of the part. By default, the global coordinate system is used when the ma-
terial is applied to a part in the Mechanical application. If desired, you can apply a local coordinate
systemto the part. Align the X-axis of the coordinate system in the direction of the North pole of
the magnet. The coordinate system may be Cartesian or cylindrical. A cylindrical system may be used
for radially oriented permanent magnets.
Nonlinear Soft Magnetic Material
This classification characterizes soft materials that exhibit nonlinear behavior between B and H. SelectB-H Curve to enter nonlinear B-H data. The nonlinear behavior is described by a single B-H curve.
You may create a curve by entering B and H data points in Engineering Data, or you may choose
from a library of B-H curves for typical properties. For material exhibiting orthotropic behavior, you
may also select Relative Permeability (Orthotropic). You may elect to apply the B-H curve in any
one or all three orthotropic directions, and specify a constant relative permeability in the other direc-
tions. If you use the orthotropic option, you can apply a local coordinate systemto the part in the
Mechanical application instead of using the default, global coordinate system. When creating B-H
curves, please observe the following guidelines:
a. The curve should be smooth and continuous.
b. Extend the curve well beyond the operating location to accurately capture local high saturation levels.The slope of the curve should asymptotically approach that of free-space permeability. The program
will extrapolate beyond the end of the curve at a slope equal to free-space permeability if required
during the simulation.
c. Group data points around the knee of the curve for better curve-fitting.
d. For best convergence of the simulation, the curve should approach the (0,0) point asymptotically. A
new point in the curve near the curve origin may cause convergence problems.
Nonlinear Hard Magnetic Material
This classification characterizes hard magnetic materials such as permanent magnets. The demagnet-ization curve of the permanent magnet is described by a series of B-H data points located in the
second quadrant. Select Demagnetization B-H Curveto enter this data. The first data entry point
should be at B = 0, H = -Hc. A permanent magnet is polarized along an axis of the part. In the
Mechanical application, you can apply a local coordinate systemto the part, instead of using the
default, global coordinate system. Align the X-axis of the coordinate system in the direction of the
North pole of the magnet. The coordinate system may be Cartesian, cylindrical. A cylindrical system
may be used for radially oriented permanent magnets. When creating B-H curves, please observe the
following guidelines:
a. The curve should be smooth and continuous.
b. The curve may extend into the first quadrant.
c. Group data points around the knee of the curve for better curve-fitting.
Electric: This classification defines the electrical properties of materials, including:
Isotropic Resistivity
Orthotropic Resistivity
Release 14.5 - SAS IP, Inc. All rights reserved. - Contains proprietary and confidential informationof ANSYS, Inc. and its subsidiaries and affiliates.30
Material Data
http://wb_sim.pdf/http://wb_sim.pdf/http://wb_sim.pdf/http://wb_sim.pdf/http://wb_sim.pdf/http://wb_sim.pdf/http://wb_sim.pdf/http://wb_sim.pdf/ -
7/22/2019 Engineering Data Users Guide
35/44
Choose your material properties based on how the material exhibits properties in orthogonal directions,
either constant in all directions (isotropic behavior) or different in orthogonal directions (orthotropic).
By default, the global coordinate system is used when you apply these properties to a part in the
Mechanical application. If desired, you can apply a local coordinate systemto the part. The material
orthogonal properties will align with the coordinate system assigned to the part. For orthotropic
material properties, all property values must be entered for the model to properly solve.
Mutually Exclusive PropertiesThe properties that are mutually exclusive are grouped in the following table.
Isotropic Elasticity
Orthotropic Elasticity
Mooney-Rivlin
Neo-Hookean
Polynomial
Yeoh
Ogden
Arruda-Boyce
Gent
Blatz-Ko
Ogden Foam
Extended Tube
Bilinear Isotropic Hardening
Multilinear Isotropic Hardening
Bilinear Kinematic Hardening
Multilinear Kinematic Hardening
Relative Permeability
Relative Permeability (Orthotropic)
Coercive Force & Residual Induction
Demagnetization B-H Curve
Thermal Conductivity Isotropic
Thermal Conductivity Orthotropic
3Release 14.5 - SAS IP, Inc. All rights reserved. - Contains proprietary and confidential informationof ANSYS, Inc. and its subsidiaries and affiliates.
Mutually Exclusive Properties
http://wb_sim.pdf/http://wb_sim.pdf/ -
7/22/2019 Engineering Data Users Guide
36/44
Isotropic Resistivity
Orthotropic Resistivity
Orthotropic Seebeck Coefficient
Seebeck Coefficient
Relative Permeability
B-H Curve
Coercive Force & Residual Induction
Demagnetization B-H Curve
Mooney-Rivlin
Neo-Hookean
Polynomial
Yeoh
Ogden
Arruda-Boyce
Gent
Blatz-Ko
Ogden Foam
Extended Tube
Anand Viscoplasticity
Williams-Landel-Ferry Shift Function
Tool-Narayanaswamy Shift Function
Tool-Narayanaswamy with Fictive Temperature Shift
Function
Superelasticity
Shape Memory Effect
Isotropic Elasticity
Orthotropic Elasticity
Anisotropic Elasticity
Release 14.5 - SAS IP, Inc. All rights reserved. - Contains proprietary and confidential informationof ANSYS, Inc. and its subsidiaries and affiliates.32
Material Data
-
7/22/2019 Engineering Data Users Guide
37/44
Blatz-Ko
Ogden Foam
Mullins Effect
Mechanical Material Curve Fitting
The material curve fitting will calculate coefficients of material models that approximate the following
experimental data. You can enter the data or copy and paste data from a spreadsheet into the Table
pane.
Uniaxial Test f(T) (Engineering Strain vs. Engineering Stress)
Biaxial Test f(T) (Engineering Strain vs. Engineering Stress)
Shear Test f(T) (Engineering Strain vs. Engineering Stress)
Volumetric Test f(T)
Note
The Volume Ratio equals the ratio of the current volume to that of the original volume and
all solution data displayed for postprocessing are true stresses and logarithmic strains.
The following hyperelastic material models support curve fitting (see Curve Fitting (p. 24)) of the exper-
imental data:
Mooney-Rivlin
Ogden
Neo-Hookean
Polynomial
Yeoh
Arruda-Boyce
Gent
Blatz-Ko
The experimental data defined for all temperatures is used for curve fitting. Please make sure that
temperatures are defined consistently for different experimental data. If the experimental data contains
temperature mismatch then the warning message will be displayed in the Messagespane during Solve
Curve Fit.
When volumetric data is supplied, a compressible or nearly incompressible model is implied. When no
volumetric data is supplied, the model is understood to be incompressible. Supplying zero as a coefficient
for the volumetric data also denotes an incompressible model.
33Release 14.5 - SAS IP, Inc. All rights reserved. - Contains proprietary and confidential informationof ANSYS, Inc. and its subsidiaries and affiliates.
Mechanical Material Curve Fitting
-
7/22/2019 Engineering Data Users Guide
38/44
You should perform curve fitting for the various hyperelastic models to choose the one, based on the
range of strain you are interested in, that best matches the experimental data provided.
Error Norm for Fit
The error norm can be set to use normalized or absolute error. Normalized error norm considers each
experimental datum equally in computing the curve fit. It generally provides better results than the
absolute error norm, but in some cases the absolute error norm is a better choice.
Nonlinear Fitting (Ogden, Gent)
For nonlinear curve fitting you can provide seed values for the coefficients or you can fix these seed
values. The seed values can be provided for each temperature data. If you do not provide seed values
internal defaults will be used. It is suggested that you attempt to use seed values based on experience
if possible. The nonlinear curve fit will most often converge to a local error norm minimum. It may take
several attempts (trial seed values) to achieve the desired fit, or copying and pasting the last solution
as seed values and solving again.
CAD Materials
The materials assigned to parts in a CAD package can be used in Mechanical by checking the Material
Properties check box in the Geometry cell properties pane. The materials assigned to parts in the CAD
package will be assigned to corresponding parts in the Mechanical application.
CADMaterials Engineering Data Source- When a model is refreshed after importing CAD geometry,
a temporar