Mechanical - Mechanical constitutive model

*Material, ...
*Mechanical = <mechanical model> 
*<parameter 1>, ... , <parameter n>
...

Set this parameter equal to the mechanical model to be used for the calculation of stresses. The subsequent lines <parameter 1\>, ... , <parameter n\> depend on the model chosen. This parameter is mandatory. The different "mechanical" models available in numgeo are described in the subsections accessible through the navigation bar on the left.