- Title
- Adaptive modelling of dynamic brittle fracture - a combined phase field regularized cohesive zone model and scaled boundary finite element approach
- Creator
- Natarajan, Sundararajan; Ooi, Ean Tat; Birk, Carolin; Song, Chongmin
- Date
- 2022
- Type
- Text; Journal article
- Identifier
- http://researchonline.federation.edu.au/vital/access/HandleResolver/1959.17/189067
- Identifier
- vital:17384
- Identifier
-
https://doi.org/10.1007/s10704-022-00634-2
- Identifier
- ISSN:0376-9429 (ISSN)
- Abstract
- Based on the error indicator computed from the scaled boundary equations, a quadtree based adaptive phase-field method is proposed for dynamic brittle fracture problems in isotropic material using the scaled boundary finite element method (SBFEM). The use of SBFEM alleviates the need for additional: (a) constraints to handle hanging nodes resulting from adaptive refinement and (b) post-processing techniques. Three representative examples are solved to demonstrate the efficiency of the proposed approach. From the numerical study, it is opined that the proposed approach requires an order of magnitude fewer degrees of freedom when compared to uniform refinement and can capture the crack morphology under dynamic loading conditions without compromising accuracy. © 2022, The Author(s), under exclusive licence to Springer Nature B.V.
- Publisher
- Springer Science and Business Media B.V.
- Relation
- International Journal of Fracture Vol. 236, no. 1 (2022), p. 87-108
- Rights
- All metadata describing materials held in, or linked to, the repository is freely available under a CC0 licence
- Rights
- Copyright © 2022, The Author(s)
- Subject
- 4005 Civil engineering; 4016 Materials engineering; 4017 Mechanical engineering; Adaptive mesh; Dynamic brittle fracture; Phase field method; Quadtree decomposition; Scaled boundary finite element method
- Reviewed
- Funder
- The research reported herein was partially performed within the scope of the DST and DAAD-PPP (India) Schemes. Sundararajan Natarajan and Carolin Birk gratefully acknowledge the final support of the Department of Science and Technology, India and German Federal Ministry of Education and Research represented by the German Academic Exchange Service.
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