Lab 1 - Introduction to Abaqus - CE529a

8/9/2019 Lab 1 - Introduction to Abaqus - CE529a

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Introduction to Abaqus

Fabian Rojas

TA

Lab - CE 529a

Fall 2010


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Abaqus ?

Abaqus is a suite of powerful engineering simulation programs,

based on the finite element method, that can solve problems

ranging from relatively simple linear analyses to the most

challenging nonlinear simulations.

All the material present here come from the Abaqus Documentation

Abaqus contains an extensive library of elements that can model

virtually any geometry. It has an equally extensive list of

material models that can simulate the behavior of most typical

engineering materials including metals, rubber, polymers,

composites, reinforced concrete, crushable and resilient foams,

and geotechnical materials such as soils and rock.


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Designed as a general-purpose simulation tool, Abaqus can be

used to study more than just structural (stress/displacement)

problems. It can simulate problems in such diverse areas as heat

transfer, mass diffusion, thermal management of electricalcomponents (coupled thermal-electrical analyses), acoustics,

soil mechanics (coupled pore fluid-stress analyses), and

piezoelectric analysis.

Abaqus offers a wide range of capabilities for simulation of linear and nonlinear applications. Problems with multiple

components are modeled by associating the geometry defining

each component with the appropriate material models and

specifying component interactions.

Abaqus ?


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ABAQUS/CAE, ABAQUS/Viewer and the Analysis

Module


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Abaqus/CAE

Abaqus/CAE (Complete Abaqus Environment) is an

interactive, graphical environment for Abaqus. It

allows models to be created quickly and easily by

producing or importing the geometry of the structure

to be analyzed and decomposing the geometry intomeshable regions. Physical and material properties

can be assigned to the geometry, together with loads

and boundary conditions. Abaqus/CAE contains very

powerful options to mesh the geometry and to verify

the resulting analysis model. Once the model is

complete, Abaqus/CAE can submit, monitor, and

control the analysis jobs. The Visualization module

can then be used to interpret the results.


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Abaqus CAE


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An Abaqus model is composed of several

different components that together describe the

physical problem to be analyzed and the results

to be obtained. At a minimum the analysis modelconsists of the following information:

Abaqus CAE

• Discretized geometry

• Element section properties

•

Material data • Loads and boundary conditions

• Analysis type

• Output requests.


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Abaqus/CAE is divided into functional

units called modules. Each module

contains only those tools that are relevant

to a specific portion of the modeling task.

Abaqus CAE


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Abaqus consists of two main analysis products—Abaqus/

Standard and Abaqus/Explicit.

•

Abaqus/Standard is a general-purpose analysis

product that can solve a wide range of linear and

nonlinear problems involving the static, dynamic,

thermal, and electrical response of components.

•

Abaqus/Explicit is a special-purpose analysis

product that uses an explicit dynamic finite

element formulation. It is suitable for modeling

brief, transient dynamic events, such as impact

and blast problems, and is also very efficient for

highly nonlinear problems involving changing

contact conditions, such as forming simulations.

Simulation


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Abaqus/Viewer is a subset of Abaqus/CAE that

contains only the postprocessing capabilities of

the Visualization module.

Abaqus/Viewer


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Units in Abaqus? Question often asked is what units does ABAQUS use? The

answer is it does not use any particular units.

Another question asked : How does one set the units in

ABAQUS? The answer is you cannot set the units. Inputparameters are simply numbers as far as ABAQUS is

concerned.

Abaqus has no built-in system of units. Do not include unit

names or labels when entering data in Abaqus. All input datamust be specified in consistent units. The user has to choose

an appropriate set of units. For structural problem the user

should decide on units for Length and Force. For time

dependent problems the unit for Time also has to be chosen.


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Units in Abaqus?

Consistent units.


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References

1. Getting Started with Abaqus/Standard

2. Abaqus Analysis User's Manual

3. Abaqus Example Problems Manual

4. Abaqus/CAE User's Manual

5. Getting Started with ABAQUS/Explicit

Online Documentation:

All the material present here come from the Abaqus Documentation


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Questions?

Lab 1 - Introduction to Abaqus - CE529a

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