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

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

doi:10.1016/j.engfracmech.2014.11.011

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

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

Authors

S. Dai

Professor Charles Augarde charles.augarde@durham.ac.uk
Head Of Department

C. Du

D. Chen

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
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.

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Copyright Statement
NOTICE: this is the author’s version of a work that was accepted for publication in Engineering Fracture Mechanics. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Engineering Fracture Mechanics, 133, January 2015, 10.1016/j.engfracmech.2014.11.011.