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MULLINS EFFECT
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MULLINS E FFECT: Specify Mullins effect material parameters for elastome rs.
This option is used to define material constan ts fo r the Mullins effect in fille d rubber elastomers or for
modeling energy dissipation in elastom eric foams. It can be used only with the
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HYPERELASTIC or the
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HYPERFOAM options.
Products: ABAQUS/Standard ABAQUS/Explicit
Type: Model data
Level: Model
References:
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“Hyperelastic behavior of rubberlike materials,” Section 17.5.1 of the ABAQUS Analysis User’s Manual
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“Hyperelastic behavior in elastomeric foam s,” Section 17.5.2 of the ABAQUS Analysis Us er’s Manual
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“Mullins effect in rubberlike materials,” Section 17.6.1 of the ABAQUS Analysis User’s Manual
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“Energy dissipation in elastomeric foams,” Section 17.6.2 of the ABAQUS Analysis User ’s Manual
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“UMULLINS,” Section 1.1.35 of the ABAQUS User Subroutines Reference Manual
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BIAXIAL TEST DATA
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PLANAR TEST DATA
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UNIAXIAL TEST DATA
Optional, mutually exclusive parameters:
TEST DATA INPUT
Include this parameter if the m aterial constants are to be computed by ABAQUS from data taken
from simple tests on a materi al specimen. If this parameter is omitted in ABAQUS /Standard, the
material constants may be given directly on the data lines or the damage variable may be defined
through user subroutine UMULLINS. If this param eter is omitted in ABAQUS/Explicit, the m aterial
constants must be given directly on the data lines.
USER
This parameter applies only to ABAQUS/Standard analyses.
Include this parameter if the damage variable defining the Mullins effect is defined in user
subroutine UMULLINS.
Optional parameters:
BETA
This parameter can be used only when the TEST DATA INPUT parameter is used; it defines the
value of
while the other coefficients of the Mullins effect model are fitted from the test data. It
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ABAQUS Version 6.1 Module:
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