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Coupling of finite and boundary element methods for an elastoplastic interface problem. (English) Zbl 0725.73090
The paper discusses the interesting example of an elastoplastic inclusion within a linear elastic medium. The interior problem is defined in variational form with a convex functional, whereas the exterior domain is described by boundary integral equations on the coupling boundary. The sadle point structure of the problem is analyzed with Galerkin approximations for the elastoplastic interior using finite elements and boundary elements to represent the linear elastic exterior.

MSC:
74S05 Finite element methods applied to problems in solid mechanics
74S15 Boundary element methods applied to problems in solid mechanics
65N38 Boundary element methods for boundary value problems involving PDEs
74S30 Other numerical methods in solid mechanics (MSC2010)
74P10 Optimization of other properties in solid mechanics
74B20 Nonlinear elasticity
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