group_materi_elasti_camclay_poisson index $\nu$

Elastic data $\nu$ for the modified CamClay model. This option is alternative to the group_materi_elasti_camclay_g option (so, only one of both can be defined). With this option the poisson ratio $\nu$ is assumed constant, and is used as follows:

$$G = \frac{3}{2} K ( 1 - 2 \nu ) / ( 1 + \nu )$$

The index specifies the element_group, see element_group.