- Title
- Adaptive analysis using scaled boundary finite element method in 3D
- Creator
- Zhang, Junqi; Natarajan, Sundararajan; Ooi, Ean Tat; Song, Chongmin
- Date
- 2020
- Type
- Text; Journal article
- Identifier
- http://researchonline.federation.edu.au/vital/access/HandleResolver/1959.17/173705
- Identifier
- vital:14751
- Identifier
-
https://doi.org/10.1016/j.cma.2020.113374
- Identifier
- ISBN:0045-7825 (ISSN)
- Abstract
- In this paper, an adaptive refinement technique using the scaled boundary finite element method (SBFEM) is proposed. The salient feature of this technique is that it is not required to regenerate the mesh for the whole model during the iterations. To this end, a local mesh refinement strategy is implemented based on a polytree algorithm in three dimensions, which can be applied to polyhedral elements with arbitrary number of nodes, edges and faces. These elements constructed by the SBFEM can be used in analysis with their boundaries discretized only, which reduce the difficulty to connect elements with different sizes. An explicit residual based error indicator is developed using the discontinuity of the stress field to guide the adaptive mesh refinement. The accuracy and efficiency of the proposed method are demonstrated using five numerical examples, including complex geometry and stress singularity. © 2020 Elsevier B.V.; The work presented in this paper is partially supported by the Australian Research Council through Grant Number DP180101538 .
- Publisher
- Elsevier B.V.
- Relation
- Computer Methods in Applied Mechanics and Engineering Vol. 372, no. (2020), p.
- Rights
- Copyright @ 2020 Elsevier B.V.
- Rights
- This metadata is freely available under a CCO license
- Subject
- Adaptive analysis; Polyhedral element; Polytree refinement; Scaled boundary finite element method
- Reviewed
- Funder
- The work presented in this paper is partially supported by the Australian Research Council through Grant Number DP180101538 .
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