A fully automatic polygon scaled boundary finite element method for modelling crack propagation

Dai, S.; Augarde, C.E.; Du, C.; Chen, D.

Abstract

An automatic crack propagation remeshing procedure using the polygon scaled boundary FEM is presented. The remeshing algorithm, developed to model any arbitrary shape, is simple yet flexible because only minimal changes are made to the global mesh in each step. Fewer polygon elements are used to predict the final crack path with the algorithm as compared to previous approaches. Two simple polygon optimisation methods which enable the remeshing procedure to model crack propagation more stably are implemented. Four crack propagation benchmarks are modelled to validate the developed method and demonstrate its salient features.

Citation

Dai, S., Augarde, C., Du, C., & Chen, D. (2015). A fully automatic polygon scaled boundary finite element method for modelling crack propagation. Engineering Fracture Mechanics, 133, 163-178. https://doi.org/10.1016/j.engfracmech.2014.11.011

• Journal Article Type: Article
• Acceptance Date: Nov 23, 2014
• Online Publication Date: Nov 27, 2014
• Publication Date: Jan 1, 2015
• Deposit Date: Nov 28, 2014
• Publicly Available Date: Apr 16, 2015
• Journal: Engineering Fracture Mechanics
• Print ISSN: 0013-7944
• Electronic ISSN: 1873-7315
• Publisher: Elsevier
• Peer Reviewed: Peer Reviewed
• Volume: 133
• Pages: 163-178
• DOI: https://doi.org/10.1016/j.engfracmech.2014.11.011
• Keywords: Scaled boundary finite element method, Crack propagation, Fracture, Polygon elements.
• Public URL: https://durham-repository.worktribe.com/output/1449670