Two-Way Radio User Manual

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VOLUMETRIC TEST DATA
21.7
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VOLUMETRIC TEST DATA: Provide volumetric test data.
This option can be used only in conjunction with the
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HYPERELASTIC option, the
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HYPERFOAM option,
or the
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VISCOELASTIC option.
Products: ABAQUS/Standard ABAQUS/Explicit
Type: Model data
Level: Model
Hyperelastic material model
Volumetric loading test data can be provided by this option to include user-defined material compressibility.
Compressibility can alternatively be included by using the POISSON parameter on the
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HYPERELASTIC
option or, in the case of the Marlow model, by specifying the nominal lateral strain under the
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UNIAXIAL
TEST DATA option. If none of these options is used to specify volumetric behavior, ABAQUS/Standard
assumes that the m aterial is incompressible, while A BAQU S/Explicit will select a default value for the
compressibility. See the discussion under “Compressibility” in “Hyperelastic behavior of rubberlike
materials,” Section 17.5.1 of the ABAQUS Analysis User’s Manual, before using this option in
ABAQUS/Explicit.
References:
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“Hyperelastic behavior of rubberlike m aterials,” Section 17.5.1 of the ABAQUS Analysis User ’s Manual
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HYPERELASTIC
Optional parameter:
SMOOTH
Include this parameter to apply a smoothing filter to the stress-strain data. If the parame ter is omitted,
no smoothing is performed.
Set this parameter equal to the num ber n such that
is equal to the total number of
data points in the moving window through which a cubic polynom ial is fit using the least-squares
method. n should be larger than 1. The default is SMOOTH=3.
Optional parameter when the
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VOLUMETRIC TEST DATA option is used in conjunction with the
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HYPERELASTIC, MARLOW option:
DEPENDENCIES
Set this parameter equal to the number of field variable dependencies included in the definition of
the test data. If this parameter is omitted, it is assumed tha t the test data depend only on temperature.
21.7–1
ABAQUS Version 6.1 Module:
ID:
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