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ABQ013 – Abaqus:

Temperature-dependent nonlinear

visco-hyperelastic model


Description

This Test Program is recommended for modeling the temperature effects of nonlinear viscoelastic response of rubbers and other polymers.

Abaqus Keywords

* HYPERELASTIC

* VISCOELASTIC, NONLINEAR

* TRS

Test Program

We recommend the following base tests:

Test ID

Description

# Temps

# Rates

# Repeats

# Specimens

UT004 – CT/HT

Load/hold tensile test

3

2

2

12


Depending on the complexity of loading or deformation, we may recommend the following additional tests:

Test ID

Description

# Temps

# Rates

# Repeats

# Specimens

PT004 – CT/HT

Load/hold planar tension test

3

2

2

12

UC004 – CT/HT

Load/hold compression test

3

2

2

12

VC004 – CT/HT

Load/hold volumetric compression test

3

2

2

12

 

Notes

  • Testing at 2 or more rates is recommended to capture the nonlinear behavior of the material.

  • Suggested testing at 3 temperatures may be revised depending on the range of temperatures of interest and the material.

  • UC004 may provide non-homogeneous stress/strain data. Inverse calibration procedures may be necessary.

  • VC004 is not needed for an incompressible material.

  • Veryst will provide a calibrated material model (either a built-in Abaqus or PolyUMod model) for the observed response and the material.

  • The resulting set of parameters can be used directly in Abaqus CAE or the input file.


Specimen Requirements

  • 20 tensile (dog-bone) specimens

  • 20 planar tension specimens

  • 20 compression cylinder specimens

  • 20 volumetric compression specimens

See description of individual tests for details on specimen geometries  Note that we request extra specimens to ensure a sufficient supply of specimens for valid testing.

Veryst can also assist in molding standard and non-standard test specimens.  Please contact us if you are interested in discussing this option.

Additional Validation

Veryst can perform additional validation, depending on the target material and the simulation application, through any of the following tests and any necessary component level FE simulation:

  • Impact testing

  • Micro-to-macro indentation responses

  • Cyclic tests with loading/unloading between different strain levels and zero stress level at different rates


More information

For a customized quotation, please click the button below and indicate the Test Program ID ABQ013, type of material, test temperatures and any other details (specimen geometries available, other unique constraints, etc.)

 

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