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A multi-cracked particle method for complex fracture problems in 2D

Ai, Weilong; Augarde, Charles E.

A multi-cracked particle method for complex fracture problems in 2D Thumbnail


Authors

Weilong Ai



Abstract

Practical fracture problems are characterised by complex patterns of multiple and branching cracks, somewhat far removed from the fracture problems used for validation of numerical methods, involving single cracks, and the simulation of complex multi-tipped cracks brings many challenges to current numerical methods. The cracking particle method (CPM) incorporates the description of a crack path into the meshless nodes or particles used to discretise a domain. The CPM has recently been improved to make the crack paths continuous and to include adaptivity. In this paper we take this improved CPM further and introduce new crack particles which can model multiple fractures to handle crack branches and crack junctions without the need for any specialised techniques such as enrichment. Some examples with complex crack patterns are tested to show the performance of the proposed methodology and good results are obtained which agree well with previous papers.

Journal Article Type Article
Acceptance Date Feb 13, 2018
Online Publication Date Feb 26, 2018
Publication Date Aug 1, 2018
Deposit Date Feb 27, 2018
Publicly Available Date Feb 26, 2019
Journal Mathematics and Computers in Simulation
Print ISSN 0378-4754
Publisher Elsevier
Peer Reviewed Peer Reviewed
Volume 150
Pages 1-24
DOI https://doi.org/10.1016/j.matcom.2018.02.005
Public URL https://durham-repository.worktribe.com/output/1365929

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