A finite element with embedded localization zones
Computer Methods in Applied Mechanics and Engineering
Discontinuous enrichment in finite elements with a partition of unity method
Finite Elements in Analysis and Design - Special issue on Robert J. Melosh medal competition
An object-oriented programming of an explicit dynamics code: application to impact simulation
Advances in Engineering Software
Parallelization of an object-oriented FEM dynamics code: influence of the strategies on the speedup
Advances in Engineering Software
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A numerical implementation of the eXtended Finite Element Method (X-FEM) to analyze crack propagation in a structure under dynamic loading is presented in this paper. The arbitrary crack is treated by the X-FEM method without re-meshing but using an enrichment of the classical displacement-based finite element approximation in the framework of the partition of unity method. Several algorithms have been implemented, within an oriented object framework in C++, in the home made explicit FEM code. The new module, called DynaCrack, included in the dynamic FEM code DynELA, evaluates the crack geometry, the propagation of the crack and allow the post-processing of the numerical results. The module solves the system of discrete equations using an explicit integration scheme. Some numerical examples illustrating the main features and the computational efficiency of the DynaCrack module for dynamic crack propagation are presented in the last section of the paper.