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https://hdl.handle.net/20.500.14094/90006945
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2024-04-20
18:33 集計
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90006945 (fulltext)
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メタデータID
90006945
アクセス権
open access
出版タイプ
Version of Record
タイトル
Energy Dissipation Measurement in Improved Spatial Resolution Under Fatigue Loading
著者
Akai, A. ; Shiozawa, D. ; Yamada, T. ; Sakagami, T.
著者名
Akai, A.
著者ID
A0950
研究者ID
1000060379336
KUID
https://kuid-rm-web.ofc.kobe-u.ac.jp/search/detail?systemId=99816a9f4c32c6b2520e17560c007669
著者名
Shiozawa, D.
塩澤, 大輝
シオザワ, ダイキ
所属機関名
工学研究科
著者名
Yamada, T.
著者ID
A0490
研究者ID
1000050192589
KUID
https://kuid-rm-web.ofc.kobe-u.ac.jp/search/detail?systemId=a6144b6682f46cb9520e17560c007669
著者名
Sakagami, T.
阪上, 隆英
サカガミ, タカヒデ
所属機関名
工学研究科
収録物名
Experimental Mechanics
巻(号)
60
ページ
181-189
出版者
Springer
刊行日
2020-02
公開日
2020-03-25
抄録
Recently, a technique for rapidly determining a material's fatigue limit by measuring energy dissipation using infrared thermography has received increasing interest. Measuring the energy dissipation of a material under fatigue loading allows the rapid determination of a stress level that empirically coincides with its fatigue limit. To clarify the physical implications of the rapid fatigue limit determination, the relationship between energy dissipation and fatigue damage initiation process was investigated. To discuss the fatigue damage initiation process at grain size scale, we performed high-spatial-resolution dissipated energy measurements on type 316L austenitic stainless steel, and observed the slip bands on the same side of the specimen. The preprocessing of dissipated energy measurement such as motion compensation and a smoothing filter was applied. It was found that the distribution of dissipated energy obtained by improved spatial resolution measurement pinpointed the location of fatigue crack initiation. Owing to the positive correlation between the magnitude of dissipated energy and number of slip bands, it was suggested that the dissipated energy was associated with the behavior of slip bands, with regions of high dissipated energy predicting the location of fatigue crack initiation.
キーワード
Dissipated energy
Slip band
Crack initiation
Infrared thermography
Stainless steel
カテゴリ
工学研究科
学術雑誌論文
権利
© The Author(s) 2019.
This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
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資源タイプ
journal article
言語
English (英語)
ISSN
0014-4851
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eISSN
1741-2765
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NCID
AA00641135
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関連情報
DOI
https://doi.org/10.1007/s11340-019-00552-w
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