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This material describes an incompressible hyperelastic Ogden material . The following material parameters must be defined:
|<c[n]>||Coefficient of n term, where n can range from 1 to 6||[P]|
|<m[n]>||Exponent of n term, where n can range from 1 to 6||[ ]|
The uncoupled hyperelastic strain energy function for this material is given in terms of the eigenvalues of the deformation tensor: Here, are the eigenvalues of , and are material coefficients and ranges from 1 to 6. Note that you only have to include the material parameters for the terms you intend to use.
<material id="1" type="Ogden"> <m1>2.4</m1> <c1>1</c1> <k>100</k> </material>