- Title
- Adaptation of quadtree meshes in the scaled boundary finite element method for crack propagation modelling
- Creator
- Ooi, Ean Tat; Man, Hou; Natarajan, Sundararajan; Song, Chongmin
- Date
- 2015
- Type
- Text; Journal article
- Identifier
- http://researchonline.federation.edu.au/vital/access/HandleResolver/1959.17/96371
- Identifier
- vital:10129
- Identifier
-
https://doi.org/10.1016/j.engfracmech.2015.06.083
- Identifier
- ISSN:0013-7944
- Abstract
- A crack propagation modelling technique combining the scaled boundary finite element method and quadtree meshes is developed. This technique automatically satisfies the compatibility requirement between adjacent quadtree cells irrespective of the presence of hanging nodes. The quadtree structure facilitates efficient data storage and rapid computations. Only a single cell is required to accurately model the stress field near crack tips. Crack growth is modelled by splitting the cells in the mesh into two. The resulting polygons are directly modelled by the scaled boundary formulation with minimal changes to the mesh. Four numerical examples demonstrate the salient features of the technique. © 2015.
- Publisher
- Elsevier Ltd
- Relation
- Engineering Fracture Mechanics Vol. 144, no. (2015), p. 101-117
- Rights
- Copyright © 2015 Elsevier Ltd
- Rights
- Open Access
- Rights
- This metadata is freely available under a CCO license
- Subject
- MD Multidisciplinary; Crack propagation; Fracture; Quadtree; Crack tips; Cracks; Digital storage; Numerical methods; Hanging nodes; Modelling techniques; Quadtree structure; Salient features; Scaled boundary finite element method; Single cells; Stress field; Finite element method
- Full Text
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