Abstract
Two boundary element method formulations are presented for the analysis of the one-dimensional scalar wave propagation problem in multi-region domains. One of the formulations employs the time-domain fundamental solution; the other, the fundamental solution related to the static problem. The problem domain is constituted of sub-domains with different material properties and, consequently, with different wave propagation velocities. Thus, the sub-region technique, akin to the boundary element method, is used to deal with the non-homogeneous problem. At the end of the article, some examples are presented, illustrating the characteristics of each formulation and their accuracy.
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The first author would like to thank the support from the Brazilian Council for Scientific and Technological Development (CNPq), under the process number 201451/2018-2/PDE.
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Carrer, J.A.M., Mansur, W.J. One-dimensional scalar wave propagation in multi-region domains by the boundary element method. J Braz. Soc. Mech. Sci. Eng. 42, 134 (2020). https://doi.org/10.1007/s40430-020-2226-5
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DOI: https://doi.org/10.1007/s40430-020-2226-5