Adaptive refinement technique for discrete static models of fracture

Abstract

The discrete static models are advantageneously used for fracture simulations in heterogeneous materails. These simulations are often extremely computationally demanding. The contribution aims to reduction of computationa cost via adaptivity in construction of the discrete model geometry. The simulation starts with coarse discretiza- tion that provides correct elastic behavior; the discretization is adaptively refined during the simulation in regions that suffer high stresses.