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Parameters of the impact blocks in different materials.
| Material parameter | Rubber | Glass | Steel |
|---|---|---|---|
| Material model in LS-DYNA | ELASTIC | MODIFIED_PIECEWISE_LINEAR_PLASTICITY | PIECEWISE_LINEAR_PLASTICITY |
| Density (kg/mm3) | 1.829e-06 | 2.5e-06 | 7.8e-06 |
| Young’s modulus (Mpa) | 4 | 70000 | 210000 |
| Poisson’s ratio | 0.45 | 0.23 | 0.3 |
