Abstract
In this paper, a novel method for the finite element analysis of three-dimensional cracks is developed by connecting global and local meshes using polyhedral elements. A local mesh including a fine spider-web mesh around the crack tip is arbitrary placed in a coarse global mesh of hexahedral elements. Polyhedral elements are generated by modifying the hexahedral elements at the interface between global and local meshes. The present polyhedral elements provide a seamless connection between global and local meshes. Numerical results show that the present method can be effectively used to analyze three-dimensional cracks by connecting global and local meshes using polyhedral elements.
| Original language | English |
|---|---|
| Article number | 109304 |
| Journal | Engineering Fracture Mechanics |
| Volume | 286 |
| DOIs | |
| State | Published - 27 Jun 2023 |
Keywords
- Finite element method
- Global and local meshes
- Polyhedral elements
- Stress intensity factors
- Three-dimensional cracks