TY - JOUR
T1 - Studies of FE/PML for exterior problems of time-harmonic elastic waves
AU - Harari, Isaac
AU - Albocher, Uri
PY - 2006/6/1
Y1 - 2006/6/1
N2 - The equation of an absorbing layer for time-harmonic elastic waves, based on the perfectly matched layer (PML) concept, is formulated in a manner that is easily implemented in finite element software. In the proposed approach, the layer is viewed as an anisotropic material with continuously varying complex material properties. The effect of the PML parameters on its discrete representation is investigated through dispersion analysis. Guidelines for proper selection of the PML parameters are presented. The formulation, with the parameters selected according to the guidelines proposed, performs well in computation.
AB - The equation of an absorbing layer for time-harmonic elastic waves, based on the perfectly matched layer (PML) concept, is formulated in a manner that is easily implemented in finite element software. In the proposed approach, the layer is viewed as an anisotropic material with continuously varying complex material properties. The effect of the PML parameters on its discrete representation is investigated through dispersion analysis. Guidelines for proper selection of the PML parameters are presented. The formulation, with the parameters selected according to the guidelines proposed, performs well in computation.
KW - Elastic waves
KW - Finite elements
KW - Perfectly matched layer (PML)
KW - Unbounded domains
UR - http://www.scopus.com/inward/record.url?scp=33645946067&partnerID=8YFLogxK
U2 - 10.1016/j.cma.2005.01.024
DO - 10.1016/j.cma.2005.01.024
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AN - SCOPUS:33645946067
SN - 0045-7825
VL - 195
SP - 3854
EP - 3879
JO - Computer Methods in Applied Mechanics and Engineering
JF - Computer Methods in Applied Mechanics and Engineering
IS - 29-32
ER -