Abstract
A method coupling the scaled boundary finite element method (SBFEM) and the finite element method (FEM) is developed for linear elastic fracture modelling. A very simple but effective remeshing procedure based on the finite element mesh only is used to accommodate crack propagation. The crack-tip region is modelled by one SBFE subdomain whose semi-analytical displacement solutions are used to extract accurate stress intensity factors. The SBFE subdomain boundary is coupled with the surrounding FE mesh boundary through virtual interfaces so that the nodal discretisations of the two boundaries can be different. Two plane problems are modelled to validate the new method.
| Original language | English |
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| Publication status | Published - 11 Dec 2013 |
| Event | APCOM & ISCM 2013: 5th Asia Pacific Congress on Computational Mechanics & 4th International Symposium On Computational Mechanics - Singapore Duration: 11 Dec 2013 → 14 Dec 2013 |
Conference
| Conference | APCOM & ISCM 2013: 5th Asia Pacific Congress on Computational Mechanics & 4th International Symposium On Computational Mechanics |
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| City | Singapore |
| Period | 11/12/13 → 14/12/13 |
Keywords
- scaled boundary finite element method, non-matching mesh, stress intensity factors, crack propagation, remeshing procedure, linear elastic fracture mechanics