Analysis of Reflection Powers from a Perfectly Matched Layer for Elastic Waves in the Frequency Domain Finite Element Model
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概要
- 論文の詳細を見る
A perfectly matched layer (PML) is useful for truncating the computation region of scattering problems in a finite element analysis (FEA). The approximation of the open region with thick layer and discretization of it with finite elements generates reflection waves from PML boundary. However, reflection powers generated by finite element discretization have not been quantified for elastic waves. In this paper, we explain the reflection from PMLs by discretized wave number analysis of elastic plane-wave scattering, and demonstrate that the results of discretized wave number analysis give satisfactory approximations of FEA.
- 2011-07-25
著者
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Hasegawa Koji
Graduate School Of Engineering Hokkaido University
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SATO Shingo
Department of Applied Chemistry, Faculty of Engineering, Aichi Institute of Technology
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Hasegawa Koji
Graduate School of Engineering, Muroran Institute of Technology, Muroran, Hokkaido 050-8585, Japan
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Shimada Takao
Graduate School of Engineering, Muroran Institute of Technology, 27-1 Mizumoto-cho, Muroran, Hokkaido 050-8585, Japan
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Shimada Takao
Graduate School of Engineering, Muroran Institute of Technology, Muroran, Hokkaido 050-8585, Japan
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