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Numerical modelling of acoustic-elastodynamic coupled problems by stabilized boundary element techniques. (English) Zbl 1163.74493

Summary: In this work, an efficient, flexible, accurate and stable algorithm to numerically model interacting acoustic-elastodynamic sub-domains is described. Stabilized time-domain boundary element techniques are considered to discretize each sub-domain of the model and proper numerical expressions on acoustic-elastodynamic interfaces are presented. Moreover, stabilized iterative coupling procedures are adopted and different time and space sub-domain discretizations are allowed, improving the robustness and versatility of the methodology. At the end of the paper, numerical results are presented, illustrating the potentialities of the proposed formulation.

MSC:

74F10 Fluid-solid interactions (including aero- and hydro-elasticity, porosity, etc.)
74S15 Boundary element methods applied to problems in solid mechanics
76Q05 Hydro- and aero-acoustics
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