Optional parameters, Data lines for law = time or law = strain – ABAQUS Volume II: I–Z User Manual

Page 613

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*VISCOUS

21.5

*VISCOUS:

Specify viscous material properties for the two-layer viscoplastic model.

This option is used to define the viscous properties for the two-layer viscoplastic material model. It must be
used in conjunction with the *ELASTIC and *PLASTIC options.

Product:

ABAQUS/Standard

Type:

Model data

Level:

Model

References:

“Two-layer viscoplasticity,” Section 18.2.11 of the ABAQUS Analysis User’s Manual

*ELASTIC

*PLASTIC

*POTENTIAL

Optional parameters:

DEPENDENCIES

Set this parameter equal to the number of field variable dependencies included in the definition of
the material properties, in addition to temperature. If this parameter is omitted, it is assumed that
the material properties depend only on temperature. See “Specifying field variable dependence”
in “Material data definition,” Section 16.1.2 of the ABAQUS Analysis User’s Manual, for more
information.

LAW

Set LAW=STRAIN (default) to choose a strain-hardening power law.

Set LAW=TIME to choose a time-hardening power law.
Set LAW=USER to input the creep law using user subroutine CREEP.

Data lines for LAW=TIME or LAW=STRAIN:

First line:

1. A. (Units of F

L

T

.)

2. n.

3. m.

4. f.

5. Temperature.

6. First field variable.

21.5–1

ABAQUS Version 6.1

Module: ID:

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