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Zbl 1168.74452
Haas, M.; Helldörfer, B.; Kuhn, G.
Improved coupling of finite shell elements and 3D boundary elements. (English)
[J] Arch. Appl. Mech. 75, No. 10-12, 649-663 (2006). ISSN 0939-1533

Summary: A strategy for the mixed-dimensional coupling of finite shell elements and 3D boundary elements is presented. The stiffness formulation for the boundary element domain is generated by the 3D symmetric Galerkin boundary element method and thus can be assembled to the global finite element formulation. Based on the equality of work at the coupling interface, coupling equations in an integral sense are derived for curved coupling interfaces and formulated as multipoint constraints in terms of kinematic quantities. Several examples show the highly accurate results compared to a strict kinematic coupling technique.

MSC 2000:: *74S05 Finite element methods
74S15 Boundary element methods
74K25 Shells

Keywords: mixed-dimensional coupling; FEM/BEM coupling; finite element method; boundary element method

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Zentralblatt MATH Berlin [Germany]