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Title: Conserved quantity of elastic waves in multi-layered media: 2D SH case — Normalized Energy Density
Authors: Goto, Hiroyuki  kyouindb  KAKEN_id  orcid https://orcid.org/0000-0002-4397-154X (unconfirmed)
Sawada, Sumio  kyouindb  KAKEN_id  orcid https://orcid.org/0000-0002-5759-4394 (unconfirmed)
Hirai, Toshiyuki
Author's alias: 後藤, 浩之
Keywords: Elastic wave
Energy
Issue Date: Nov-2011
Publisher: Elsevier B.V.
Journal title: Wave Motion
Volume: 48
Issue: 7
Start page: 603
End page: 613
Abstract: We introduce a new conserved quantity, Normalized Energy Density (NED), alternative to the conventional definition of energy for a layered structure in a 2D SH problem. NED is defined by the average of power of a half transfer function multiplied by the impedance, and the conservation across the material interface is analytically proved for a two-layered case. For three, four, and ten-layered cases, the conservation is examined by applying the Monte Carlo simulation method, and then NED is supposed to be conserved through the layers.
Rights: © 2011 Elsevier B.V.
この論文は出版社版でありません。引用の際には出版社版をご確認ご利用ください。
This is not the published version. Please cite only the published version.
URI: http://hdl.handle.net/2433/147254
DOI(Published Version): 10.1016/j.wavemoti.2011.04.011
Appears in Collections:Journal Articles

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