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MATERIAL
13.5
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MATERIAL: Begin the definition of a material.
This option is used to indicate the start of a material definition .
Products: ABAQUS/Standard ABAQUS/Explicit
Type: Model data
Level: Model
Reference:
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“Material data definition,” Section 16.1.2 of the ABAQ US Analysis User ’s Manual
Required parameter:
NAME
Set this param eter equal to a label that will be used to refer to the material in the element property
options. Material names in the same input file must be unique. Furthermore, material nam es should
be uniquefrom the names associated with property definitions such as
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CONNECTOR BEHAVIOR
and
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FLUID BEHAV IOR. Material names adhere to the nam ing convention for labels (see “Input
syntax rules,” Section 1.2.1 ofthe ABAQUS Analysis User’s Manual), except that they cannot begin
with a number.
Optional parameters:
RTOL
This parameter applies only to ABAQUS/Explic it analyses.
Set this parameter equal to the tolera nce to be used for regularizing the material data. The
default is RTOL=0.03.
SRATE FACTOR
This parameter applies only to ABAQUS/Explic it analyses.
Set this parameter equal to the factor used for filtering the equivalent plastic strain rate for the
evaluation of strain rate-de pendent material data. The defau lt value is 0.9.
STRAIN RATE REGULARIZATION
This parameter applies only to ABAQUS/Explicit a nalyses and is used only to regularize strain
rate-dependent material data.
Set STRAIN RATE REGULARIZATION=LOGARITHMIC (default) to use a logarithmic
regularization for strain rate-depend ent material data.
13.5–1
ABAQUS Version 6.1 Module:
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