ABAQUS Volume II: I–Z - Manual (Page 585)

*UNIAXIAL TEST DATA
20.3 *UNIAXIAL TEST DATA: Used to provide uniaxial test data (compression and/or
tension).
This option is used to provide uniaxial test data. It can be used only in conjunction with the *HYPERELASTIC
option, the *HYPERFOAM option, and the *MULLINS EFFECT option.
Products: ABAQUS/Standard ABAQUS/Explicit
Type: Model data
Level: Model
Using uniaxial test data to define a hyperelastic material
References:
•
“Hyperelastic behavior of rubberlike materials,” Section 17.5.1 of the ABAQUS Analysis User’s Manual
•
*HYPERELASTIC
Optional parameter:
SMOOTH
Include this parameter to apply a smoothing filter to the stress-strain data. If the parameter is omitted,
no smoothing is performed.
Set this parameter equal to the number n such that is equal to the total number of
data points in the moving window through which a cubic polynomial is fit using the least-squares
method. n should be larger than 1. The default is SMOOTH=3.
Optional parameter when the *UNIAXIAL 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 parameter is omitted, it is assumed that the test data depend only on temperature.
Data lines to specify uniaxial test data for hyperelasticity other than the Marlow model:
First line:
1. Nominal stress, .
2. Nominal strain, .
Repeat this data line as often as necessary to give the stress-strain data.
20.3–1
ABAQUS Version 6.1 Module: ID:
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