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group_materi_plasti_mohrcoul_tensioncutoff index switch

The normal group_materi_plasti_mohrcoul does only limit shear forces, and doesn't care about any tension stresses. That normally isn't a problem since in geotechnical calculations the stress are compressive anyway.

With this group_materi_plasti_mohrcoul_tensioncutoff you can cutoff, however, any tensile stresses beyond the apex. Activate this by setting switch to -yes.

Activating this cutoff option may lead to a more troublesome convergence behavior.

tochnog 2001-09-02