×

Simulation of excavations using a coupled finite and boundary element method. (Spanish. English summary) Zbl 1187.74240

Summary: When nonlinear physical systems of infinite extent are modelled, such as excavations, it is necessary to simulate suitably the solution in the infinite as well as the non-linearity. The finite element method (FEM) is a well-known procedure for simulating the nonlinear behavior. However, the treatment of the infinite field with domain truncations is often questionable. On the other hand, the boundary element method (BEM) is suitable to simulate the infinite behavior without truncations. Because of this, by the combination of both methods a suitable use of the advantages of each one would be obtained. Several possibilities of FEM-BEM coupling are performed. Parallelizable coupling algorithms based in a domain decomposition are developed and compared with the most traditional coupling methods.

MSC:

74S05 Finite element methods applied to problems in solid mechanics
74S15 Boundary element methods applied to problems in solid mechanics
74L10 Soil and rock mechanics
PDFBibTeX XMLCite