Difference between revisions of "Clamped Neo-Hookean Material"
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| Elastic || Enter 0 to basic elastic stresses on the model in Ref. <ref name="DIZ"/>. Enter 1 to base elastic stresses on the [[Neo-Hookean Material|neo-Hookean material]]. || none || 0 | | Elastic || Enter 0 to basic elastic stresses on the model in Ref. <ref name="DIZ"/>. Enter 1 to base elastic stresses on the [[Neo-Hookean Material|neo-Hookean material]]. || none || 0 | ||
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| ([[Neo-Hookean Material#Material Properties|other]]) || Properties to define underlying neo-Hookean material (note that UJOption can | | ([[Neo-Hookean Material#Material Properties|other]]) || Properties to define underlying neo-Hookean material (note that UJOption is always 1 when Elastic is 0, but can be any option when Elastic is 1) || varies || varies | ||
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|} | |} | ||
Revision as of 16:37, 6 February 2015
Constitutive Law
This MPM Material is an isotropic, elastic-plastic material in large strains using a hyperelastic formulation. The elastic part is a neo-Hookean material. Plasticity occurs when the elongation in either tension of compression reaches a critical value. This material is based on similar material using in a paper to animate snow mechanics[1].
Material Properties
The material properties are given in the following table.
| Property | Description | Units | Default |
|---|---|---|---|
| CritComp | Critical compression extension | none | 0.025 |
| CritComp | Critical tensile extension | none | 0.0075 |
| xihard | Hardening coefficient | none | 10 |
| Elastic | Enter 0 to basic elastic stresses on the model in Ref. [1]. Enter 1 to base elastic stresses on the neo-Hookean material. | none | 0 |
| (other) | Properties to define underlying neo-Hookean material (note that UJOption is always 1 when Elastic is 0, but can be any option when Elastic is 1) | varies | varies |
Examples
These commands model snow: