*MATERIAL

Begin the definition of a material.

This option is used to indicate the start of a material definition.

This page discusses:

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In Other Guides
Material Data Definition

ProductsAbaqus/StandardAbaqus/ExplicitAbaqus/CAE

TypeModel data

LevelModel

Abaqus/CAEProperty module

Required parameters

NAME

Set this parameter equal to a label to use to refer to the material in the element property options. Material names in the same input file must be unique. Furthermore, material names should be unique from the names associated with property definitions such as CONNECTOR BEHAVIOR and FLUID BEHAVIOR. Material names adhere to the naming convention for labels (see Input Syntax Rules), except that they cannot begin with a number.

Optional parameters

RTOL

This parameter applies only to Abaqus/Explicit analyses.

Set this parameter equal to the tolerance to use for regularizing the material data. The default is RTOL=0.03.

STRAIN RATE INTERPOLATION

This parameter applies only to Abaqus/Explicit analyses and is used only to interpolate strain rate–dependent material data.

Set STRAIN RATE INTERPOLATION=LOGARITHMIC (default) to use logarithmic intervals while interpolating strain rate–dependent material data.

Set STRAIN RATE INTERPOLATION=LINEAR to use linear intervals while interpolating strain rate–dependent material data.

Optional and mutually exclusive parameters in Abaqus/Explicit

SRATE FACTOR

Set this parameter equal to the factor used to filter the equivalent plastic strain rate for the evaluation of strain rate-dependent material data.

The default value is 0.9, unless a time filter is defined with the SRATE TIME parameter.

SRATE TIME

Set this parameter equal to the time constant used to filter the equivalent plastic strain rate for the evaluation of strain rate-dependent material data.

There are no data lines associated with this option.