TY - JOUR
T1 - Diffraction of elastic waves in fluid-layered solid interfaces by an integral formulation
AU - Basaldúa-Sánchez, J. E.
AU - Samayoa-Ochoa, D.
AU - Rodríguez-Sánchez, J. E.
AU - Rodríguez-Castellanos, A.
AU - Carbajal-Romero, M.
PY - 2013
Y1 - 2013
N2 - In the present communication, scattering of elastic waves in fluid-layered solid interfaces is studied. The indirect boundary element method is used to deal with this wave propagation phenomenon in 2D fluid-layered solid models. The source is represented by Hankel's function of second kind and this is always applied in the fluid. Our method is an approximate boundary integral technique which is based upon an integral representation for scattered elastic waves using single-layer boundary sources. This approach is typically called indirect because the sources' strengths are calculated as an intermediate step. In addition, this formulation is regarded as a realization of Huygens' principle. The results are presented in frequency and time domains. Various aspects related to the different wave types that emerge from this kind of problems are emphasized. A near interface pulse generates changes in the pressure field and can be registered by receivers located in the fluid. In order to show the accuracy of our method, we validated the results with those obtained by the discrete wave number applied to a fluid-solid interface joining two half-spaces, one fluid and the other an elastic solid.
AB - In the present communication, scattering of elastic waves in fluid-layered solid interfaces is studied. The indirect boundary element method is used to deal with this wave propagation phenomenon in 2D fluid-layered solid models. The source is represented by Hankel's function of second kind and this is always applied in the fluid. Our method is an approximate boundary integral technique which is based upon an integral representation for scattered elastic waves using single-layer boundary sources. This approach is typically called indirect because the sources' strengths are calculated as an intermediate step. In addition, this formulation is regarded as a realization of Huygens' principle. The results are presented in frequency and time domains. Various aspects related to the different wave types that emerge from this kind of problems are emphasized. A near interface pulse generates changes in the pressure field and can be registered by receivers located in the fluid. In order to show the accuracy of our method, we validated the results with those obtained by the discrete wave number applied to a fluid-solid interface joining two half-spaces, one fluid and the other an elastic solid.
UR - http://www.scopus.com/inward/record.url?scp=84893742057&partnerID=8YFLogxK
U2 - 10.1155/2013/469428
DO - 10.1155/2013/469428
M3 - Artículo
SN - 1110-757X
VL - 2013
JO - Journal of Applied Mathematics
JF - Journal of Applied Mathematics
M1 - 469428
ER -