2008 International ANSYS ConferenceANSYS Conference · 2008 International ANSYS ConferenceANSYS ......

2008 International 2008 International ANSYS ConferenceANSYS ConferenceANSYS ConferenceANSYS Conference

Combining the strengths of ANSYS Workbench and ANSYS/CivilFEM

Peter R. Barrett, P.E.Vice President

© 2008 ANSYS, Inc. All rights reserved. 1 ANSYS, Inc. Proprietary

CAE Associates

Combining the strengths of Workbench and CivilFEMWorkbench and CivilFEM• Challenges of Civil / Structural Engineers today:– Increase Construction efficiency– Increase Construction efficiency

– Save Material Costs

– Extend the life of existing structures

– Evaluate the Risks of Terrorist Events

• SolutionD l t t t l l i d l– Develop more accurate structural analysis models

– Develop automated analyses to save design time

– Perform what if and design optimization tasks to create more g peffective use of construction materials

– Use the strengths of ANSYS Workbench and CivilFEM to achieve these goals


these goals

What is CivilFEM?• CivilFEM is an integrated Pre- and Post-

processor to traditional ANSYS developed byprocessor to traditional ANSYS developed by ANSYS’s Spain distributor INGECIBER

55 CANADA

100º110º120º130ºAASHTO LRFDBridge Design Specifications (Western USA)

N /CivilSYS FEM

2.5

40

5

15

15

5

8060

50

60

5

5

5

52.5

2.5

5

2.5

2.5

60

50º

40º

30º

AAcceleration Coefficient

Seismic Zone

1< 0.09

Tropic of CancerMÉXICO

1

2

3

4> 0.29

> 0.19 and < 0.29

_> 0.09 and < 0.19

_

< 0.09

_


CAE Associates• CAE Associates is one of the original ANSYS

channel partners and a CivilFEM channel partnerchannel partners and a CivilFEM channel partner with unique expertise in Civil Engineering


Combining the Strengths of Workbench and CivilFEMWorkbench and CivilFEM

• Topics Addressed– Comparison of Workbench & CivilFEM– Applications where integration makes sense– Customization without Programming– Sample Case Study– Summary


Comparison of Tool Strengths

• ANSYS Workbench: Ease of use

• CivilFEM:A t t d C l– Ease of use

– Geometry manipulation– Graphics speed

– Automated Complex analyses

– Complex loadingp p– CAD integration and

associativityRobust meshing

Complex loading– Material Models– Specialized Post-– Robust meshing

– Loads, BC application– Automatic assembly

processing capabilities– Driven interactively or

with batch/input scriptsand contact generation.– Uses ANSYS for

solution.

with batch/input scripts– Uses ANSYS for

solution.


solution.

Workbench / ANSYS/CivilFEM FEA Road Map

CAD System (ProE,UG,SolidWorks,SolidEdge,Inventor,CATIA)

“Black Window” ANSYSWorkbench

)

geometry + parametersANF file

(geometry only)

DesignModeler ANSYS + CivilFEM Preprocessor

geometry + parameters

ANF file (geometry only)

SimulationNodes, Elements, BCs Materials

Nodes, Elements, BCs, Materials, ~CivilFEM Command Blocks

Nodes, Elements, BCs, Materials, ~CivilFEM commands

BCs, Materials


ANSYS & ANSYS / CivilFEM Solver

Co a d oc s commands

Combining the strengths of Workbench and CivilFEMWorkbench and CivilFEM

• Workbench Strengths in Civil EngineeringEngineering– Development of Parametric

Geometry models usingGeometry models using DesignModeler and/or native CAD

– Defeaturing of CAD modelsDefeaturing of CAD models – Robust Meshing

Named Selections for easy– Named Selections for easy interface with ANSYS/CivilFEM

– Easy Accessibility to CivilFEM


Easy Accessibility to CivilFEM features via command blocks


• CivilFEM Strengths– Nonlinear Bridge SimulationNonlinear Bridge Simulation– Pre-stressed Concrete

Nuclear Applications– Nuclear Applications– Geotechnical Applications including tunnelling

Built in Material Models and Code Checking


– Built-in Material Models and Code Checking


• Applications where integration makes sensepp g– 3-D Brick/Tet Modeling– Design of Experiments and/or OptimizationDesign of Experiments and/or Optimization

Applications– Model Defeaturingg– Custom Material & Code Checking Required

• Customization without ProgrammingCustomization without Programming• Accessing full suite of ANSYS and CivilFEM

options


p

Example Sequential Simulation

• Nonlinear Incremental Construction

• Automated TunnelingAutomated Tunneling

XY

Z

XY

Z



• CivilFEM SetupI t t d C d U it M t i l– Integrated Codes, Units, Materials


CivilFEM Materials – Command Block Example

• CivilFEM Material Library and Units commands Accessed in Workbench via Command BlockAccessed in Workbench via Command Block



• Complex Material Laws – Concrete Cracking for ExampleExample


Simple Beam Example

• Using DesignModeler a 3-d Parametric I-Beam M d l i t dModel is created.

• Ex. ParametersFl G– Flange Geom.• Depth

Thickness• Thickness– Web thickness

B Ht– Beam Ht


Simple Beam Example

• Example Command Block used to activate Ci ilFEM d l d fi th Ci ilFEM kiCivilFEM modules, define the CivilFEM working units and define material properties for the I-BeamBeam


Simple Beam Example

• Command Block is listed in the DS.DAT file:


Simple Beam Example

• Example List of Material Properties


Combining the strengths of Workbench and ANSYS/CivilFEM

• Workbench Parametric Model Results• Postprocess in WB• Postprocess in WB– Stresses

Deflections– Deflections– Section Cuts


Combining the strengths of Workbench and ANSYS/CivilFEMWorkbench and ANSYS/CivilFEM

• Example Beam Results from CivilFEM– Shear– Peak Stress– Section Data


CivilFEM Post Accessed via Command Blocks in Workbench

• Postprocessing of Solids for Design checking using CivilFEM Solids to Shells Automation viausing CivilFEM Solids to Shells Automation via Command Blocks:

• ∼SD2SH, NodeComp, ElemComp, SHVTXNUM, SHPRONUM, S S , odeCo p, e Co p, S U , S O U ,MatReinf, CoverIn, CoverOut, Th, TolTh


CivilFEM Post Accessed via Command Blocks in Workbench

• Code Checking for Concrete Sections


CivilFEM Module Example - Seismic Analysis

Push-Over Analysis

3,50E-01

4,00E-01

4,50E-01

ADRS Format Spectrum

55

2.5

5

15

6060

CANADA

100º110º120º130º

50º

AASHTO LRFDBridge Design Specifications (Western USA)

N /CivilSYS FEM

1,00E-01

1,50E-01

2,00E-01

2,50E-01

3,00E-01Sa

ADRS Format Spectrum

IPE 100

Con rigidizadores

40

15

15

5

8060

505

5

5

2.5

5

2.5

40º

30º


0,00E+00

5,00E-02

0,00E+00 1,00E-02 2,00E-02 3,00E-02 4,00E-02 5,00E-02 6,00E-02 7,00E-02 8,00E-02

SdTropic of Cancer

52.5

2.5

MÉXICO

AAcceleration Coefficient

Seismic Zone

1

2

3

4> 0.29

> 0.19 and < 0.29

_> 0.09 and < 0.19

_

< 0.09

_


• Current Capabilities of Workbench make it easy to t i l l f Ci ilFEMaccess material laws from CivilFEM

• Current WB allows for all CivilFEM features to be accessed via Command Blocksaccessed via Command Blocks

• Current CivilFEM allows a majority of its capabilities to be accessed via commandscapabilities to be accessed via commands

• Models are easily passed to CivilFEM• More automated Integration is expected after the• More automated Integration is expected after the

release of WB2!


2008 International ANSYS ConferenceANSYS Conference · 2008 International ANSYS ConferenceANSYS ......

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