MSC.NASTRAN Hyperelastic Compressible Model (MATHP)
Test ID
G-811
Description
In modeling situations where the material is highly confined, it is often necessary to model both the deviatoric and volumetric behavior in order to obtain accurate results. This TestPak includes tensile stress-strain curves, compressive stress-strain curves, a planar tension test, solid density, and pure volumetric compression using PVT data. Data is fit to a Mooney-Rivlin model or the appropriate hyperelastic model.
Included Tests
| 1x | D-010 | Solid Density |
| 1x | M-204 | Tensile Stress-Strain, Strength, and Modulus |
| 1x | M-211 | Lubricated Compressive Stress-Strain (Biaxial Tension) |
| 1x | M-213 | Confined Compression Stress-Strain (Hydrostatic, for rubbers) |
Options
For thin sheet materials, a biaxial tension test [M-218] may need to be performed instead of the compressive experiment.
Samples
: 6 hyperelastic test specimens
[details]Application
This TestPak is used to model a material exhibiting an elastic response up to large strains. It describes hyperelastic behavior, where the material exhibits significant compressibility. Materials such as rubbers and elastomers are approximated well using this model.
