A note on the calculation of consistent tangent operators for Von Mises and Drucker‐Prager plasticity
René de Borst, Arend E. Groen · Communications in Numerical Methods in Engineering · 1994
Abstract A comparison is made of implementations of consistent tangent operators that arise in implicit integration of Von Mises and Drucker‐Prager yield criteria. When computing the consistent tangent operator a matrix inversion has to be performed at integration point level. The consequences of different formulations of the consistent tangent operator on the numerical accuracy are assessed.