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-

Sakino, Yoshihiro; Kim, You-Chul

doi:https://doi.org/10.18910/11974

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このアイテムへのリンクには次のURLをご利用ください: https://doi.org/10.18910/11974

このアイテムへのリンクには次のURLをご利用ください: https://hdl.handle.net/11094/11974

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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	NRID 1000080273712 1000080273712 著者名 Sakino, Yoshihiro
著者	NRID 1000020144529 1000020144529 著者名 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.
出版者	大阪大学接合科学研究所
	オオサカダイガクセツゴウカガクケンキュウジョ
	Joining and Welding Research Institute, Osaka University
収録物名	Transactions of JWRI
巻(号)	38(2)
ページ	95-101
刊行年月	2009-12
言語	英語
ハンドルURL	https://hdl.handle.net/11094/11974
DOI	https://doi.org/10.18910/11974
PISSN	03874508
NCID	AA00867058
アクセス権	open access
出版タイプ	Version of Record
カテゴリ	紀要論文 Departmental Bulletin Paper
カテゴリ	Transactions of JWRI / Vol.38 No.2 (2009-12)

資源タイプ	紀要論文
ローカル資源タイプ	紀要論文
DCMI資源タイプ	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
DC.creator	Kim, You-Chul
DC.publisher	大阪大学接合科学研究所
	オオサカダイガクセツゴウカガクケンキュウジョ
	Joining and Welding Research Institute, Osaka University
DC.language' scheme='DCTERMS.RFC1766	英語
DC.type' scheme='DCTERMS.DCMIType	text
DCTERMS.issued' scheme='DCTERMS.W3CDTF	2009-12
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.
DC.identifier	10.18910/11974
DC.format	application/pdf
citation_doi	https://doi.org/10.18910/11974
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
citation_author	Kim, You-Chul
citation_publisher	大阪大学接合科学研究所
	オオサカダイガクセツゴウカガクケンキュウジョ
	Joining and Welding Research Institute, Osaka University
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_public_url	https://hdl.handle.net/11094/11974
citation_doi_detail	10.18910/11974

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