Prediction of Welding Distortion and Panel Buckling of Car Carrier Decks using Database Generated by FEA

Tajima, Yusuke; Rashed, Sherif; Okumoto, Yasuhisa; Katayama, Yasuo; Murakawa, Hidekazu

doi:https://doi.org/10.18910/6722

このアイテムのアクセス数:193件（2023-12-09 14:25 集計）

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/10.18910/6722

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/11094/6722

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jwri36_01_065	pdf	なし	0.98 MB	797	2012.09.22

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タイトル	Prediction of Welding Distortion and Panel Buckling of Car Carrier Decks using Database Generated by FEA
著者	著者名 Tajima, Yusuke
	著者名 Rashed, Sherif
	NRID 1000050247962 1000050247962 著者名 Okumoto, Yasuhisa
	著者名 Katayama, Yasuo
	NRID 1000060166270 1000060166270 著者名 Murakawa, Hidekazu
キーワード等	Welding Deformation
	Welding Procedure
	Tendon Force
	Buckling
	Deflection
	Thermal Elastic Plastic Analysis
	Plate Width Effects
	Edge Effect
抄録	Straightening of welding deformation in shipbuilding is an expensive and time consuming process. Therefore, minimizing welding deformation is required in both design and construction stages. When welding thin plates such as those used in passenger car decks in Car Carriers, welding longitudinal shrinkage, caused by welding tendon force, causes compressive stress in the surrounding plate fields that sometimes causes these plate fields to buckle. Straightening of a buckled plate is difficult and buckling should be avoided whenever possible. For this purpose, a cross stiffened panel of a car deck of a Car Carrier is considered. A series of thermal elastic plastic finite element analyses is carried out to predict the welding tendon forces of Longitudinals and Transverses when utilizing continuous and intermittent welding with different welding process specifications. Bi-directional residual compressive stresses are evaluated and buckling is checked. Results indicate that when the geometry of the welded cross-section is similar, welding tendon force depends almost only on the average heat input per unit length of the weld line, no matter whether welding is continuous or intermittent. The effectiveness of parallel and zigzag intermittent welding in reducing welding residual stress and preventing buckling is quantified. A tendon force database may be created such that designers may easily check buckling and select welding specifications
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)	36(1)
ページ	65-71
刊行年月	2007-07
言語	英語
ハンドルURL	https://hdl.handle.net/11094/6722
DOI	https://doi.org/10.18910/6722
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.36 No.1 (2007-07)

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. 2007, 36(1), p. 65-71
DC.title	Prediction of Welding Distortion and Panel Buckling of Car Carrier Decks using Database Generated by FEA
DC.creator	Tajima, Yusuke
	Rashed, Sherif
	Okumoto, Yasuhisa
	Katayama, Yasuo
	Murakawa, Hidekazu
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	2007-07
DC.subject	Welding Deformation
	Welding Procedure
	Tendon Force
	Buckling
	Deflection
	Thermal Elastic Plastic Analysis
	Plate Width Effects
	Edge Effect
DCTERMS.abstract	Straightening of welding deformation in shipbuilding is an expensive and time consuming process. Therefore, minimizing welding deformation is required in both design and construction stages. When welding thin plates such as those used in passenger car decks in Car Carriers, welding longitudinal shrinkage, caused by welding tendon force, causes compressive stress in the surrounding plate fields that sometimes causes these plate fields to buckle. Straightening of a buckled plate is difficult and buckling should be avoided whenever possible. For this purpose, a cross stiffened panel of a car deck of a Car Carrier is considered. A series of thermal elastic plastic finite element analyses is carried out to predict the welding tendon forces of Longitudinals and Transverses when utilizing continuous and intermittent welding with different welding process specifications. Bi-directional residual compressive stresses are evaluated and buckling is checked. Results indicate that when the geometry of the welded cross-section is similar, welding tendon force depends almost only on the average heat input per unit length of the weld line, no matter whether welding is continuous or intermittent. The effectiveness of parallel and zigzag intermittent welding in reducing welding residual stress and preventing buckling is quantified. A tendon force database may be created such that designers may easily check buckling and select welding specifications
DC.identifier	10.18910/6722
DC.format	application/pdf
citation_doi	https://doi.org/10.18910/6722
citation_title	Prediction of Welding Distortion and Panel Buckling of Car Carrier Decks using Database Generated by FEA
citation_author	Tajima, Yusuke
	Rashed, Sherif
	Okumoto, Yasuhisa
	Katayama, Yasuo
	Murakawa, Hidekazu
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	2007-07
citation_journal_title	Transactions of JWRI
citation_volume	36
citation_issue	1
citation_firstpage	65
citation_lastpage	71
citation_public_url	https://hdl.handle.net/11094/6722
citation_doi_detail	10.18910/6722

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