Journal
ENGINEERING FRACTURE MECHANICS
Volume 112, Issue -, Pages 97-125Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.engfracmech.2013.10.002
Keywords
Large X-FEM deformation; Ductile fracture; Non-local damage-plasticity; Crack propagation
Categories
Funding
- Iran National Science Foundation (INSF)
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An enriched-FEM technique is presented for the crack growth simulation in large deformation ductile fracture problems using a non-local damage-plasticity model in the framework of eXtended Finite Element Method (X-FEM). The Lemaitre damage-plasticity model is used to capture the material degradation effect, in which the non-locality is enforced by solving a Helmholtz type equation in combination with the governing equation of the system based on an operator-split technique. A convergence study is performed to investigate the performance of X-FEM technique in plasticity problems. The accuracy and effectiveness of proposed X-FEM damage-plasticity model are verified through several numerical examples. (C) 2013 Elsevier Ltd. All rights reserved.
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