Abstract
This chapter outlines the semi-analytical methodology that was developed over the past decade and a half to model transient fluid-structure interaction phenomena for thin-walled structures submerged in and/or filled with fluid. The theoretical framework of the methodology based on the use of the classical apparatus of mathematical physics is exposed first. Then, a demonstration of some of the capabilities of the methodology is presented as it is applied to an industrially relevant fluid-structure interaction problem. Specifically, the response of a submerged cylindrical shell to a double-front shock wave is considered, with the emphasis on the existence of certain resonance-like phenomena which result in a considerable increase of the maximum stress induced in the structure by such a loading. The outcomes of the modeling using both the 2D and 3D versions of the methodology are presented, and the differences between the results produced by these two approaches, a lower-fidelity one and a higher-fidelity one, are highlighted.
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Acknowledgements
The research program summarized here has been continually supported financially by the Natural Sciences and Engineering Research Council (NSERC) of Canada and by the Killam Trusts at Dalhousie University, Canada.
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Iakovlev, S. (2020). Semi-Analytical Modeling of Non-stationary Fluid-Structure Interaction. In: Biancolini, M., Cella, U. (eds) Flexible Engineering Toward Green Aircraft. Lecture Notes in Applied and Computational Mechanics, vol 92. Springer, Cham. https://doi.org/10.1007/978-3-030-36514-1_6
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