, Volume 32, Issue 4-6, pp 415-422

BEM–FEM coupling for 3D fracture mechanics applications

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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.

A research grant from MURST (Cofinanziamento 2000) is acknowledged.