Abstract
This article presents a formulation for the symmetrical coupling of finite element and boundary element methods, based on the symmetric Galerkin boundary integral equations for three-dimensional elasticity, in regularized form. The stiffness matrix of an elastic region is, as a result, expressed in terms of the boundary displacement DOFs. Its extension to elastic regions containing cracks is also presented. The procedure has been implemented in the FEM-based environment CAST3M. Three numerical examples are shown: a pressurized spherical cavity in an infinite elastic-plastic medium, an assembly structure, and a cracked cylindrical bar.
| Translated title of the contribution | A symmetrical formulation for finite element-boundary element coupling in fracture mechanics |
|---|---|
| Original language | French |
| Pages (from-to) | 277-289 |
| Number of pages | 13 |
| Journal | Revue Europeenne des Elements |
| Volume | 11 |
| Issue number | 2-4 |
| DOIs | |
| Publication status | Published - 1 Jan 2002 |
| Externally published | Yes |