Study on Burn-through Prediction of In-service Welding

Han, Tao; Wang, Yong; Liu, Wei

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タイトル	Study on Burn-through Prediction of In-service Welding
著者	Han, Tao Han, Tao
	Wang, Yong Wang, Yong
	Liu, Wei Liu, Wei
キーワード等	in-service welding
	burn-through
	radical displacement
	SYSWELD
抄録	The pressure of media flowing in the pipe is one of the most important factors that has greatly influence on burn-through during in-service welding. The burn-through phenomenon was studied on the radial displacement with numerical simulation method supplemented by means of actual wielding tests under different inner pressure. The results show that the radial displacement of the node beneath the molten pool increases with the increasing temperature of welding. When the temperature is close to the peak temperature, the deformation of the node has a mutation. Futhermore, the mutation degree becomes larger with higher inner pressure. Under a specific temperature field, the radial displacement of the node with maximum temperature at the inner wall changes linearly with the increasing pressure at the first stage, but when the inner pressure is up to a fixed value, the trend cannot be continued, and a mutation appears and indicts that the burn-through should occur if we don’t take preventive measures. So the radial displacement can be seen as the burn-through criterion of in-service welding.
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	WSE2011
開始ページ	9
終了ページ	12
刊行年月	2012-03
ISSN	03874508
NCID	AA00867058
URL	http://hdl.handle.net/11094/23060
言語	英語
カテゴリ	紀要論文 Departmental Bulletin Paper
カテゴリ	Transactions of JWRI / Special Issue on Welding science and Engineering (WSE2011)

著者版フラグ	publisher
NII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.WSE2011 P.9-P.12
DC.title	Study on Burn-through Prediction of In-service Welding
DC.creator	Han, Tao
	Wang, Yong
	Liu, Wei
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	2012-03
DC.identifier" scheme="DCTERMS.URI	http://hdl.handle.net/11094/23060
DC.subject	in-service welding
	burn-through
	radical displacement
	SYSWELD
DCTERMS.abstract	The pressure of media flowing in the pipe is one of the most important factors that has greatly influence on burn-through during in-service welding. The burn-through phenomenon was studied on the radial displacement with numerical simulation method supplemented by means of actual wielding tests under different inner pressure. The results show that the radial displacement of the node beneath the molten pool increases with the increasing temperature of welding. When the temperature is close to the peak temperature, the deformation of the node has a mutation. Futhermore, the mutation degree becomes larger with higher inner pressure. Under a specific temperature field, the radial displacement of the node with maximum temperature at the inner wall changes linearly with the increasing pressure at the first stage, but when the inner pressure is up to a fixed value, the trend cannot be continued, and a mutation appears and indicts that the burn-through should occur if we don’t take preventive measures. So the radial displacement can be seen as the burn-through criterion of in-service welding.
citation_title	Study on Burn-through Prediction of In-service Welding
citation_author	Han, Tao
	Wang, Yong
	Liu, Wei
citation_publisher	大阪大学接合科学研究所
citation_language	英語
citation_date	2012-03
citation_journal_title	Transactions of JWRI
citation_volume	WSE2011
citation_firstpage	9
citation_lastpage	12
citation_issn	03874508
citation_public_url	http://hdl.handle.net/11094/23060
citation_keywords	in-service welding
	burn-through
	radical displacement
	SYSWELD

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