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Indexed by:Journal Papers

Date of Publication:2015-06-01

Journal:ACTA MECHANICA SOLIDA SINICA

Included Journals:SCIE、EI、CSCD

Volume:28

Issue:3

Page Number:235-251

ISSN No.:0894-9166

Key Words:concurrent multiscale method; crack propagation; extended finite element method; level set method

Abstract:A concurrent multiscale method is developed for simulating quasi-static crack propagation in which the failure processes occur in only a small portion of the structure. For this purpose, a multiscale model is adopted and both scales are discretized with finite-element meshes. The extended finite element method is employed to take into account the propagation of discontinuities on the fine-scale subregions. At the same time, for the other subregions, the coarse-scale mesh is employed and is resolved by using the extended multiscale finite element method. Several representative numerical examples are given to verify the validity of the method.