*PLANAR TEST DATA
16.11 *PLANAR TESTDATA: Used to provideplanar test (or pure shear) data (compression
and/or tension).
This option is used to provide planar test (or pure shear) data. It can be used only in conjunction with the
*HYPERELASTIC option, the *HYPERFOAM option, and the *MULLINS EFFECT option. Thistype of
test does not define the hyperelastic material constants fully; atthe leas t, uniaxial or biaxial test data should
also be given.
Products: ABAQUS/Standard ABAQUS/Explicit
Type: Model data
Level: Model
Using planar test data to define a hyperelastic material
References:
•“Hyperelasticbehavior of rubberlike materials,” Section 17.5.1 of the ABAQUS Analysis User’s Manual
•*HYPERELASTIC
Optional parameter:
SMOOTH
Includethis pa rameter to apply a smoothing filter to the stress-strain data. Ifthe parameter is omitted,
no smoothing is performed.
Set this parameter equal to the number nsuch that is equal to the total number of
data points in the moving window through which a cubic polynomial is fit us ing the least-squares
method. nshould be larger than 1. The default is SMOOTH=3.
Optional parameter when the *PLANAR TEST DATA option is used in conjunction with the
*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 param eter is omitted, it is assumed that the test data depend only on tem perature.
See “Specifying field variable dependence” in “Material data definition,” Section 16.1.2 of the
ABAQUS Analysis User’s Manual, for more information.
16.11–1
ABAQUS Version 6.1 Module: ID:
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