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jwri36_01_065
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論文情報
タイトル
Prediction of Welding Distortion and Panel Buckling of Car Carrier Decks using Database Generated by FEA
著者
Tajima, Yusuke
Tajima, Yusuke
Rashed, Sherif
Rashed, Sherif
Okumoto, Yasuhisa
Okumoto, Yasuhisa
Katayama, Yasuo
Katayama, Yasuo
Murakawa, Hidekazu
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
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
36
号
1
開始ページ
65
終了ページ
71
刊行年月
2007-07
ISSN
03874508
NCID
AA00867058
URL
http://hdl.handle.net/11094/6722
言語
英語
カテゴリ
紀要論文 Departmental Bulletin Paper
Transactions of JWRI / Vol.36 No.1 (2007-07)
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text
DCTERMS.bibliographicCitation
Transactions of JWRI.36(1) P.65-P.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
DC.language" scheme="DCTERMS.RFC1766
英語
DCTERMS.issued" scheme="DCTERMS.W3CDTF
2007-07
DC.identifier" scheme="DCTERMS.URI
http://hdl.handle.net/11094/6722
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
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
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_issn
03874508
citation_public_url
http://hdl.handle.net/11094/6722
citation_keywords
Welding Deformation
Welding Procedure
Tendon Force
Buckling
Deflection
Thermal Elastic Plastic Analysis
Plate Width Effects
Edge Effect