×

BEM-FEM coupling for 3D fracture mechanics applications. (English) Zbl 1038.74664

Summary: Attention is here focused on the implementation of a coupled BEM-FEM procedure employing the BE method for the modelling of the near-crack region and the FEM for the far-field, where no singularities in the stress field are expected to arise. The symmetric variational version of the BE method is utilized, allowing to obtain a final linear system endowed with a symmetric matrix. With respect to 3D linear elastic fracture mechanics, the code developed is used to evaluate stress intensity factors for some benchmarks and simulate fracture propagation.

MSC:

74S15 Boundary element methods applied to problems in solid mechanics
74S05 Finite element methods applied to problems in solid mechanics
74R10 Brittle fracture
PDFBibTeX XMLCite
Full Text: DOI