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| Q. |
What kind of elastic materials are derived from a strain energy density function? |
| A. | cauchy elastic materials |
| B. | hypo elastic materials |
| C. | hyper elastic materials |
| D. | none of the mentioned |
| Answer» C. hyper elastic materials | |
| Explanation: the hyper elastic materials are derived from a strain energy density function. a model is hyper elastic if and only if it is possible to express the cauchy stress tensor as a function of the deformation gradient. | |
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