group_materi_plasti_cap index $c$ $\phi$ $\alpha$ $R$ $\epsilon _v^p$ $p_b$ $\ldots$

Plastic data for the modified cap plasticity model. The $\epsilon _v^p$ $p_b$ $\ldots$ represents a table with $\epsilon _v^p$ versus $p_b$ values; at least two sets of values need to be specified.

The index specifies the element_group, see element_group.