Speaker
Dr
Stanislav Sysala
(Institute of Geonicsof the CAS)
Description
This poster summarizes an implicit constitutive solution scheme of the elastoplastic problem containing the Mohr-Coulomb yield criterion, a nonassociative flow rule, and a nonlinear isotropic hardening. The scheme builds upon the subdifferential formulation of the flow rule leading to several improvements. For example, one can a priori detect a position of the unknown stress tensor within the Mohr-Coulomb pyramid or simplify a construction of the consistent tangent operator. The presented scheme was included to a vectorized Matlab code and used for solving a slope stability problem in 3D.
Primary author
Dr
Stanislav Sysala
(Institute of Geonicsof the CAS)
