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jwri38_02_095
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論文情報
タイトル
Applicability of Thin Steel Plate with a Crack to Estimating of Fatigue Damage on Bridges (Report II) -Effect of delayed retardation and applicability under fluctuating amplitude loads-
著者
Sakino, Yoshihiro
Sakino, Yoshihiro
Kim, You-Chul
Kim, You-Chul
キーワード等
Fatigue
Bridge Maintenance
Fatigue Damage Parameter
Crack Growth
Sacrificial Test Piece
Fluctuating Amplitude Loads
Delayed Retardation
抄録
Thin steel plates, which have initial crack at the center, are used as “Sacrificial Test Pieces” in this study. The Sacrificial Test Piece is attached to a bridge member in order to evaluate the damage before appearance of a crack in the member. The purpose of this study is to clarify the effect of delayed retardation and to show the applicability of the thin steel plates as sacrificial test pieces under fluctuating amplitude loads. The fatigue damage parameters calculated by crack propagation length of thin steel plates under some fluctuating amplitude loads are compared with those calculated by the stress measurement. From the results, the crack propagation lengths in the thin steel plates are affected by the delayed retardation of the crack propagation under fluctuating amplitude loads. However, it is shown that the relation between the fatigue damage parameter and the crack propagation length is almost linear through the hastening of the crack propagation after delayed retardation. And it is verified that the absolute value of the fatigue damage parameter can be monitored by the crack propagation length of the thin steel plates even under fluctuating amplitude loads.
公開者
大阪大学接合科学研究所
公開者の別表記
Joining and Welding Research Institute, Osaka University
公開者 (ヨミ)
オオサカ ダイガク セツゴウ カガク ケンキュウジョ
掲載誌名
Transactions of JWRI
巻
38
号
2
開始ページ
95
終了ページ
101
刊行年月
2009-12
ISSN
03874508
NCID
AA00867058
URL
http://hdl.handle.net/11094/11974
言語
英語
カテゴリ
紀要論文 Departmental Bulletin Paper
Transactions of JWRI / Vol.38 No.2 (2009-12)
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text
DCTERMS.bibliographicCitation
Transactions of JWRI.38(2) P.95-P.101
DC.title
Applicability of Thin Steel Plate with a Crack to Estimating of Fatigue Damage on Bridges (Report II) -Effect of delayed retardation and applicability under fluctuating amplitude loads-
DC.creator
Sakino, Yoshihiro
Kim, You-Chul
DC.publisher
大阪大学接合科学研究所
DC.language" scheme="DCTERMS.RFC1766
英語
DCTERMS.issued" scheme="DCTERMS.W3CDTF
2009-12
DC.identifier" scheme="DCTERMS.URI
http://hdl.handle.net/11094/11974
DC.subject
Fatigue
Bridge Maintenance
Fatigue Damage Parameter
Crack Growth
Sacrificial Test Piece
Fluctuating Amplitude Loads
Delayed Retardation
DCTERMS.abstract
Thin steel plates, which have initial crack at the center, are used as “Sacrificial Test Pieces” in this study. The Sacrificial Test Piece is attached to a bridge member in order to evaluate the damage before appearance of a crack in the member. The purpose of this study is to clarify the effect of delayed retardation and to show the applicability of the thin steel plates as sacrificial test pieces under fluctuating amplitude loads. The fatigue damage parameters calculated by crack propagation length of thin steel plates under some fluctuating amplitude loads are compared with those calculated by the stress measurement. From the results, the crack propagation lengths in the thin steel plates are affected by the delayed retardation of the crack propagation under fluctuating amplitude loads. However, it is shown that the relation between the fatigue damage parameter and the crack propagation length is almost linear through the hastening of the crack propagation after delayed retardation. And it is verified that the absolute value of the fatigue damage parameter can be monitored by the crack propagation length of the thin steel plates even under fluctuating amplitude loads.
citation_title
Applicability of Thin Steel Plate with a Crack to Estimating of Fatigue Damage on Bridges (Report II) -Effect of delayed retardation and applicability under fluctuating amplitude loads-
citation_author
Sakino, Yoshihiro
Kim, You-Chul
citation_publisher
大阪大学接合科学研究所
citation_language
英語
citation_date
2009-12
citation_journal_title
Transactions of JWRI
citation_volume
38
citation_issue
2
citation_firstpage
95
citation_lastpage
101
citation_issn
03874508
citation_public_url
http://hdl.handle.net/11094/11974
citation_keywords
Fatigue
Bridge Maintenance
Fatigue Damage Parameter
Crack Growth
Sacrificial Test Piece
Fluctuating Amplitude Loads
Delayed Retardation