『徳島大学 教育・研究者情報データベース (EDB)』---[学外] /
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登録内容 (EID=302154)

EID=302154EID:302154, Map:0, LastModified:2016年1月22日(金) 15:37:28, Operator:[三木 ちひろ], Avail:TRUE, Censor:0, Owner:[西野 秀郎], Read:継承, Write:継承, Delete:継承.
種別 (必須): 学術論文 (審査論文) [継承]
言語 (必須): 英語 [継承]
招待 (推奨):
審査 (推奨): Peer Review [継承]
カテゴリ (推奨): 研究 [継承]
共著種別 (推奨):
学究種別 (推奨):
組織 (推奨):
著者 (必須): 1.西野 秀郎 ([徳島大学.大学院社会産業理工学研究部.理工学域.機械科学系.材料科学分野]/[徳島大学.理工学部.理工学科.機械科学コース.材料科学講座])
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学籍番号 (推奨):
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題名 (必須): (英) An Investigation of reflection coefficients of the T(0,1) mode guided waves at axisymmetric defects and Inverse problem analyses for estimations of defect shapes  (日)    [継承]
副題 (任意):
要約 (任意): (英) The frequency dependences of the reflection coefficients at gradual step-down axisymmetric defects were experimentally evaluated for the investigation of the reflection phenomena of the T(0,1) mode guided waves. Different frequency dependences were observed depending on the axial profile of the defect. A mathematical model using the characteristic acoustic impedance for calculating the reflection coefficients at axisymmetric defects was introduced. The reflection coefficients for the gradual step-down axisymmetric defects were confirmed to be in good agreement with the calculation results. By utilizing the mathematical model, a reflection mechanism was explained precisely and was verified. An inverse problem analysis for estimating the shape of an axisymmetric defect was also proposed based on the experimental reflection coefficients as a function of frequency together with the calculation model. Experimental verification of the proposed estimation method was performed using circular concave axisymmetric defects inside pipe specimens. The estimation results and accuracy were discussed in terms of the relation between the frequency range and the axial length of the defects.  (日)    [継承]
キーワード (推奨): 1. (英) nondestructive evaluation (日) (読) [継承]
2. (英) ultrasonic guided wave (日) (読) [継承]
3. (英) T(0,1) mode (日) (読) [継承]
4. (英) defect detection (日) (読) [継承]
5. (英) defect sizing (日) (読) [継承]
6.逆問題 (inverse problem) [継承]
発行所 (推奨): 社団法人 日本金属学会 [継承]
誌名 (必須): Materials Transactions ([社団法人 日本金属学会])
(pISSN: 1345-9678, eISSN: 1347-5320)

ISSN (任意): 1345-9678
ISSN: 1345-9678 (pISSN: 1345-9678, eISSN: 1347-5320)
Title: Materials transactions
Title(ISO): Mater Trans
Supplier: 公益社団法人 日本金属学会
Publisher: Japan Institute of Metals
 (NLM Catalog  (J-STAGE  (Scopus  (CrossRef (Scopus information is found. [need login])
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(必須): 56 [継承]
(必須): 1 [継承]
(必須): 120 128 [継承]
都市 (任意):
年月日 (必須): 西暦 2015年 1月 初日 (平成 27年 1月 初日) [継承]
URL (任意): http://ci.nii.ac.jp/naid/130004704653/ [継承]
DOI (任意): 10.2320/matertrans.M2014331    (→Scopusで検索) [継承]
PMID (任意):
NAID (任意): 130004704653 [継承]
WOS (任意): 000350536800017 [継承]
Scopus (任意): 2-s2.0-84920052941 [継承]
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標準的な表示

和文冊子 ● Hideo Nishino : An Investigation of reflection coefficients of the T(0,1) mode guided waves at axisymmetric defects and Inverse problem analyses for estimations of defect shapes, Materials Transactions, Vol.56, No.1, 120-128, 2015.
欧文冊子 ● Hideo Nishino : An Investigation of reflection coefficients of the T(0,1) mode guided waves at axisymmetric defects and Inverse problem analyses for estimations of defect shapes, Materials Transactions, Vol.56, No.1, 120-128, 2015.

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