Explicit Dynamics Chapter 3 Eng Data

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1-1ANSYS, Inc. Proprietary

2009 ANSYS, Inc. All rights reserved.February 27, 2009

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Chapter 3

Engineering Data

ANSYS Explicit Dynamics


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Training ManualEngineering Data

The Engineering Data application provides overall control for material

properties.

Engineering data is a part of every project.

Engineering data can be opened stand alone (as a precursor to starting

a project for example).

To edit the EngineeringData in an existing

project RMB > Edit or

double click

To open the Engineering Datastandalone, add from the

component systems in the toolbox

(drag/drop or double click), then

RMB > Edit or double click.


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Training ManualEngineering Data

The Engineering Data application is displayed below. Individual

controls and components are described next.

Toolbox

Property

Chart

Properties for material

selected below

Properties of

material selected

above

Outline of Filtered Materials

Outline Filter


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Training Manual. . . Engineering Data

The window interaction provides cascading data presentation.

To view or modify materials one generally follows a work flow shown here:

data source > material > individual property

Choose Data

Source (Library)

Choose Material

Choose Property

Display Property in

tabular and graphical

format


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A list of available material

libraries is displayed. These may

be ANSYS supplied or user

defined.

The Engineering Data field represents thelist of materials which have been imported

for use in the current project

Favorites are materials which will be

available in every project without the need

to import from a library.

Check box allows

library to be unlocked

for editing.

Browse for existing

libraries or choose

new library location.

Outline Filter


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The toolbox provides numerous material property definitions that can beadded to existing or new materials.

To modify materials in existing libraries the library must be unlocked,(note this permanently modifies the material stored in that library).

Materials in the current projects engineering data can be modified withoutaffecting the material library.

The Toolbox Customization settings

allows filtering of the properties

displayed in the toolbox.


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To add a material from an existing library to

the current project click the plus sign (+)

next to that material (or drag and drop thematerial to Engineering Data)

Any material defined in the current project

will be marked as show at right.

Once added each material becomes

available for use in the current project (it

becomes part of the current Engineering

Data).

Note, to add a

material to the

Favorites list,

RMB the material

and add.


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To add a new material, first select where you wantthe material data to be stored

Note, materials need not be stored in a library butcan be added to the current project by storing inEngineering Data.

Next provide a name for the material and beginadding components and properties from theToolbox.


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Training ManualMaterial Models for Explicit Dynamics

Material modelcomponents are brokeninto categories

User can choosecomponents from eachcategory, as required

If a selected component

is dependant on physicalparameters, they will alsobe selected automatically

If a selected componentprecludes componentsselected earlier, thosecomponents will be

automatically suppressed

If you want themremoved, you must dothis manually


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Training ManualLibraries for Explicit Dynamics

Engineering Data provides

two libraries containing data

suitable for Explicit Dynamics

Explicit Materials

Contains a wide range of

materials generally used in

non-linear explicit analyses

Models cannot be used for

implicit analyses (e.g. pre-

stressing)

General Non-linear Materials

Contains basic material data

for non-linear analysis.

Common engineering

materials

Suitable for use in implicit and

explicit analyses


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2009 ANSYS Inc All rights reservedFebruary 27, 2009

Inventory #002665

Training ManualMaterial Models for Explicit Dynamics

Material data input example

1. UnderLinear Elastic, select

Isotropic Elasticity

Physical property Density is

automatically added (required

for all models)

2. UnderPlasticity, select Bilinear

Isotropic Hardening

3. UnderPlasticity, select

Johnson Cook Strength

Bilinear Isotropic Hardeningis automatically suppressed

Physical property Specific

Heat is automatically added

(required for thermal softening

term)

Explicit Dynamics Chapter 3 Eng Data

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