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jwri41_01-065
pdf
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論文情報
タイトル
Influence of Root Gap and Tack Weld on Transverse Shrinkage during Welding
著者
Murakawa, Hidekazu
Murakawa, Hidekazu
Sano, Masanori
Sano, Masanori
Wang, Jiangchao
Wang, Jiangchao
キーワード等
Welding deformation
Transverse shrinkage
Root gap
Tack welding
Finite Element simulation
抄録
Welding distortion is caused by the local shrinkage produced during the welding thermal cycle. The local shrinkage can be separated into four components, namely transverse shrinkage, longitudinal shrinkage, transverse bending and longitudinal bending. In this research, the influence of the root gap on the transverse shrinkage of welded joints is closely examined from the aspect of closing or opening of the root gap with the movement of the welding torch. Since the contact phenomena between the two surfaces forming the root gap are important, an interface element is introduced to a thermal elastic-plastic FEM. The butt welding model and fillet welding model are used to study the influence of gap size and the pitch of tack welding. Once the relation between the size of the gap and the transverse shrinkage is obtained, it can be introduced to the elastic FEM using the inherent deformation to predict the welding distortion of large structures.
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
41
号
1
開始ページ
65
終了ページ
70
刊行年月
2012-06
ISSN
03874508
NCID
AA00867058
URL
http://hdl.handle.net/11094/23161
言語
英語
カテゴリ
紀要論文 Departmental Bulletin Paper
Transactions of JWRI / Vol.41 No.1 (2012-06)
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著者版フラグ
publisher
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紀要論文
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text
DCTERMS.bibliographicCitation
Transactions of JWRI.41(1) P.65-P.70
DC.title
Influence of Root Gap and Tack Weld on Transverse Shrinkage during Welding
DC.creator
Murakawa, Hidekazu
Sano, Masanori
Wang, Jiangchao
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
2012-06
DC.identifier" scheme="DCTERMS.URI
http://hdl.handle.net/11094/23161
DC.subject
Welding deformation
Transverse shrinkage
Root gap
Tack welding
Finite Element simulation
DCTERMS.abstract
Welding distortion is caused by the local shrinkage produced during the welding thermal cycle. The local shrinkage can be separated into four components, namely transverse shrinkage, longitudinal shrinkage, transverse bending and longitudinal bending. In this research, the influence of the root gap on the transverse shrinkage of welded joints is closely examined from the aspect of closing or opening of the root gap with the movement of the welding torch. Since the contact phenomena between the two surfaces forming the root gap are important, an interface element is introduced to a thermal elastic-plastic FEM. The butt welding model and fillet welding model are used to study the influence of gap size and the pitch of tack welding. Once the relation between the size of the gap and the transverse shrinkage is obtained, it can be introduced to the elastic FEM using the inherent deformation to predict the welding distortion of large structures.
citation_title
Influence of Root Gap and Tack Weld on Transverse Shrinkage during Welding
citation_author
Murakawa, Hidekazu
Sano, Masanori
Wang, Jiangchao
citation_publisher
大阪大学接合科学研究所
citation_language
英語
citation_date
2012-06
citation_journal_title
Transactions of JWRI
citation_volume
41
citation_issue
1
citation_firstpage
65
citation_lastpage
70
citation_issn
03874508
citation_public_url
http://hdl.handle.net/11094/23161
citation_keywords
Welding deformation
Transverse shrinkage
Root gap
Tack welding
Finite Element simulation