Modal Stress Intensity Factor Using Extended Finite Element Method
The aim of this paper is the determination of the evolution of the modal stress intensity factor (MSIF) for a non-propagating crack subjected to dynamic loading using the extended finite element method (X-FEM). The main advantage of this method coupled with the modal analysis is its capability in modeling cracks independently of the mesh and in a reduced computational time compared to the finite element method coupled with dynamic iterative method. The proposed procedure is applied to a reference problem (cracked plate). The MSIFs obtained agree well with those found by indirect boundary element (IBEM), weight function and Newmark’s explicit methods.
B. Abdelkader et al., "Modal Stress Intensity Factor Using Extended Finite Element Method", Applied Mechanics and Materials, Vol. 232, pp. 686-690, 2012