Numerical Analysis of the Straightening Process of Thin Plate Structures by Elastic FEM based on the Inherent Strain Method

Vega, Adan; Camaño, Alexandra; Blandon, Juan; Serizawa, Hisashi; Ma, Ninshu; Murakawa, Hidekazu

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論文情報

タイトル	Numerical Analysis of the Straightening Process of Thin Plate Structures by Elastic FEM based on the Inherent Strain Method
著者	Vega, Adan Vega, Adan
	Camaño, Alexandra Camaño, Alexandra
	Blandon, Juan Blandon, Juan
	Serizawa, Hisashi Serizawa, Hisashi
	Ma, Ninshu Ma, Ninshu
	Murakawa, Hidekazu Murakawa, Hidekazu
キーワード等	Straightening
	welding distortion
	line heating
	inherent strain
	FEM
抄録	Welding distortion is practically an expected feature in shipbuilding, with a few exceptions; when thick plates are used, for example. Nowadays, the trend is to use thinner plates in order to reduce weight, aiming to reduce waste of fuel. However, thin plates are drastically affected by welding distortion, this finally represents a significant - unnecessary expenditure of money and time on straightening the structure. Here it is necessary to realize that even with the most effective welding process, welding distortion in thin plates appears, so it is unrealistic to think about free of distortion lightweight welded structures. Although there have been gradual movements to optimize the straightening process, still many question remain to be answered. In this paper, an Elastic Finite Element Model based on Inherent Strain Method is developed in order to study the process of straightening deformed plates. Some techniques, usually used in the practice, are numerically evaluated and their effectiveness compared. Finally, useful recommendations that aim to the optimization of the process are drawn.
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	2
開始ページ	61
終了ページ	67
刊行年月	2012-12
ISSN	03874508
NCID	AA00867058
URL	http://hdl.handle.net/11094/24864
言語	英語
カテゴリ	紀要論文 Departmental Bulletin Paper
カテゴリ	Transactions of JWRI / Vol.41 No.2 (2012-12)

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.41(2) P.61-P.67
DC.title	Numerical Analysis of the Straightening Process of Thin Plate Structures by Elastic FEM based on the Inherent Strain Method
DC.creator	Vega, Adan
	Camaño, Alexandra
	Blandon, Juan
	Serizawa, Hisashi
	Ma, Ninshu
	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	2012-12
DC.identifier" scheme="DCTERMS.URI	http://hdl.handle.net/11094/24864
DC.subject	Straightening
	welding distortion
	line heating
	inherent strain
	FEM
DCTERMS.abstract	Welding distortion is practically an expected feature in shipbuilding, with a few exceptions; when thick plates are used, for example. Nowadays, the trend is to use thinner plates in order to reduce weight, aiming to reduce waste of fuel. However, thin plates are drastically affected by welding distortion, this finally represents a significant - unnecessary expenditure of money and time on straightening the structure. Here it is necessary to realize that even with the most effective welding process, welding distortion in thin plates appears, so it is unrealistic to think about free of distortion lightweight welded structures. Although there have been gradual movements to optimize the straightening process, still many question remain to be answered. In this paper, an Elastic Finite Element Model based on Inherent Strain Method is developed in order to study the process of straightening deformed plates. Some techniques, usually used in the practice, are numerically evaluated and their effectiveness compared. Finally, useful recommendations that aim to the optimization of the process are drawn.
citation_title	Numerical Analysis of the Straightening Process of Thin Plate Structures by Elastic FEM based on the Inherent Strain Method
citation_author	Vega, Adan
	Camaño, Alexandra
	Blandon, Juan
	Serizawa, Hisashi
	Ma, Ninshu
	Murakawa, Hidekazu
citation_publisher	大阪大学接合科学研究所
citation_language	英語
citation_date	2012-12
citation_journal_title	Transactions of JWRI
citation_volume	41
citation_issue	2
citation_firstpage	61
citation_lastpage	67
citation_issn	03874508
citation_public_url	http://hdl.handle.net/11094/24864
citation_keywords	Straightening
	welding distortion
	line heating
	inherent strain
	FEM

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