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A meshless method for ductile fracture
Author(s) -
Li L.,
Liu S.,
Wang H.
Publication year - 2011
Publication title -
international journal for numerical methods in biomedical engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.741
H-Index - 63
eISSN - 2040-7947
pISSN - 2040-7939
DOI - 10.1002/cnm.1302
Subject(s) - fracture (geology) , meshfree methods , smoothed particle hydrodynamics , regularized meshless method , materials science , galerkin method , work (physics) , visibility , structural engineering , computer science , mechanics , finite element method , singular boundary method , composite material , engineering , mechanical engineering , physics , optics , boundary element method
In this work, a meshless Galerkin method is used to simulate ductile fracture. The Gurson–Tvergaard–Needleman is used in the bulk material and a crack is introduced once a certain damage threshold is exceeded. The visibility criterion that modifies the particle connectivity based on the evolving crack surface morphology is used. Two problems are considered and numerical results are compared with experimental data. The numerical results show that the proposed meshless method works well. Copyright © 2009 John Wiley & Sons, Ltd.