Preface
The extended finite element method (X-FEM) is a novel numerical methodology, which was first proposed by Belytschko et al. in 1999. It has subsequently been developed very quickly in the mechanics field worldwide. Based on the finite element method and fracture mechanics theory, X-FEM can be applied to solve complicated discontinuity issues including fracture, interface, and damage problems with great potential for use in multi-scale computation and multi-phase coupling problems.
The fundamental concept and formula of X-FEM are introduced in this book, as well as the technical process of program implementation. The expressions for enriched shape functions of the elements are provided, which include the displacement discontinued crack, termed ...
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