Conference paper
Modelling cohesive crack growth using a two-step finite element-scaled boundary finite element coupled method
Proceedings of the 6th International Conference on Fracture Mechanics of Concrete and Concrete Structures - Fracture Mechanics of Concrete and Concrete Structures, Vol.1, pp.133-138
6th International Conference on Fracture Mechanics of Concrete and Concrete Structures - Fracture Mechanics of Concrete and Concrete Structures (Catania, Italy, 17/06/2007–22/06/2007)
2007
Abstract
This study develops a two-step method, coupling the finite element method (FEM) and the scaled boundary finite element method (SBFEM), to model cohesive crack growth in quasi-brittle normal-sized structures. In the first step, the crack trajectory is fully-automatically predicted by a remeshing procedure using the SBFEM based on linear elastic fracture mechanics theories. In the second, interfacial finite elements with tension-softening constitutive laws are inserted into the crack path to model energy dissipation in the fracture process zone, while the elastic bulk material is modelled by the SBFEM. The resultant nonlinear equation system is solved by local arc-length controlled solvers. A concrete beam subjected to mixed-mode fracture is modelled using the proposed method. The numerical results demonstrate that this new method can predict both satisfactory crack trajectories and accurate load-displacement relations with a small number of degrees of freedom.
Details
- Title
- Modelling cohesive crack growth using a two-step finite element-scaled boundary finite element coupled method
- Authors/Creators
- Z.J. YangA.J. Deeks
- Publication Details
- Proceedings of the 6th International Conference on Fracture Mechanics of Concrete and Concrete Structures - Fracture Mechanics of Concrete and Concrete Structures, Vol.1, pp.133-138
- Conference
- 6th International Conference on Fracture Mechanics of Concrete and Concrete Structures - Fracture Mechanics of Concrete and Concrete Structures (Catania, Italy, 17/06/2007–22/06/2007)
- Identifiers
- 991005546490107891
- Murdoch Affiliation
- Vice Chancellery
- Resource Type
- Conference paper
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