*SWELLING
18.53 *SWELLING: Specify time-dependent volumetric swelling.
This option is used to specify time-dependent metal swelling f or a material. Swelling behavior defined
by this option is active only during *SOILS, CONSOLIDATION; *COUPLED TEMPERATURE-
DISPLACEMENT; and *VISCO procedures.
Product: ABAQUS/Standard
Type: Model data
Level: Model
References:
•“Rate-dependentplasticity: creep and swelling,” Section 18.2.4 of the ABAQUS Analysis User’s Manual
•“CREEP,”Section 1.1.1 of the ABAQUS User Subroutines Reference Manual
Optional parameters:
DEPENDENCIES
Setthis param eter equal to the number of field variable dependencie s included in the definition of the
volumetric swelling strain rate in addition to temperature. Ifthis parameter is o mitted, it is assumed
that thevolumetric swelling strain rate is constant or depends 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=INPUT(default) to define the swelling behavior on the data lines.
Set LAW=USER to define the swelling behavior in user subroutine CREEP.
Data lines for LAW=INPUT:
First line:
1. Volumetric swelling strain rate.
2. Temperature.
3. Firstfield variable.
4. Second field variable.
5. Etc., up to six field variables.
Subsequent lines (only needed if the DEPENDENCIES parameterhas a value greater than six):
1. Seventhfield variable.
18.53–1
ABAQUS Version 6.1 Module: ID:
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