*POROUS METAL PLASTICITY
16.20 *POROUS METALPLASTICITY: Specify a porous metal plasticity model.
This option is used to specify the porous part of the porous metal plasticity model.
The *POROUS METAL PLASTICITY option can be used in conjunction with the *VOID
NUCLEATIONoption to define the nucleation of voids. In an ABAQUS/Explicit analysis it can also be used
in conjunction with the *POROUS FAILURE CRITERIA optionto specify the material failure criteria.
Products: ABAQUS/Standard ABAQUS/Explicit
Type: Model data
Level: Model
References:
•“Porous metal plasticity,”Section 18.2.9 of the ABAQUS Analysis User’s Manual
•*VOID NUCLEATION
•*POROUS FAILURE CRITERIA
Optional parameters:
DEPENDENCIES
Set this parameter equal to the number of field variable dependencies, in addition totem perature,
included in the definition of the ,,and parameters. Ifthis parameter is omitted, ,,and
may depend only on temperature. See “Specifying field variable dependence” in “Material data
definition,” Section 16.1.2of the ABAQUS Analysis User ’sManual, for more information.
RELATIVEDENSITY
Setthis parameter equal to , the initial relative density of the m aterial. If this param eter is omitted,
the initial relative density is interpolated from the value s given in the *INITIAL CONDITIONS,
TYPE=RELATIVEDENSITY option.
Data lines to define porous metal plasticity:
First line:
1. .
2. .
3. .
4. Temperature.
5. Firstfield variable.
16.20–1
ABAQUS Version 6.1 Module: ID:
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