A Numerical Method of Failure Process of Geotechnical Materials

In this paper, the displacement discontinuity initiation conditions are deduced based on potential energy principle. The finite element discrete of weak form of governing equation is developed by combination of displacement discontinuity evolution conditions and discontinuity connection which material derivative describes. Keywords-potential energy principle; displacement discontinuity; discontinuity connection; discretization I. DESCRIPTION OF THE PROBLEM A solid analysis domain is V. Its stress boundary is S and displacement boundary is u S .The equilibrium equation is