COMSOL: Elastic material model with creep
Description
This test program is recommended for modeling the creep response of elastic materials.
COMSOL Material
Linear Elastic + Creep
Test Program
We recommend the following base tests:
| Test ID | Description | # Strain Levels | # Repeats | # Specimens |
|---|---|---|---|---|
|
2 |
2 |
4 |
Depending on the complexity of loading or deformation, we may recommend the following additional tests:
| Test ID | Description | # Strain Levels | # Repeats | # Specimens |
|---|---|---|---|---|
|
1 |
2 |
2 |
||
|
2 (Strain levels) |
2 |
4 |
||
|
1 |
2 |
2 |
||
|
2 (Strain levels) |
2 |
4 |
Notes
- Creep testing at 2 or more stress levels is recommended to determine a suitable creep model for this material.
- These tests are performed at room temperature. For other temperatures see COM018.
- UC006 may provide non-homogeneous stress/strain data. Inverse calibration procedures may be necessary.
- VC001 and VC005 are not needed for an incompressible material.
- Veryst will provide a calibrated material model for the observed response and the material.
- The resulting set of parameters can be used directly in COMSOL Multiphysics.
Specimen Requirements for Complete Test Program
- 10 tensile (dog-bone) specimens
- 4 compression cylinder specimens
- 10 volumetric compression specimens
See the 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:
- 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 write to us at testing@veryst.com and indicate the Test ID (COM017), type of material, test temperatures, specimen geometries available, or other relevant details.