Identification of Factors Dominating Mechanical Behavior of Box Columns Corrected by Heating/Pressing

Hirohata, Mikihito; Kim, You-Chul

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タイトル	Identification of Factors Dominating Mechanical Behavior of Box Columns Corrected by Heating/Pressing
著者	Hirohata, Mikihito Hirohata, Mikihito
著者	Kim, You-Chul Kim, You-Chul
キーワード等	Correction by Heating/Pressing
	Buckling
	Ultimate Strength
	Residual Imperfection
	Work Hardening
抄録	A series of experiments and numerical simulations were carried out to identify factors dominating mechanical behavior of box columns corrected by heating/pressing. Local buckling deformation was generated in the virgin columns by compressive loads and it was corrected by heating below the A₁ transformation temperature and pressing. After the correction, compressive loads were applied to the corrected columns again. Although the ultimate strengths of both the virgin and corrected columns were almost the same, the buckling mode of the corrected columns differed from that of the virgin columns. When considering the geometric residual imperfection resulting from incomplete correction by heating/pressing and the increase of yield stress due to large plastic deformation caused by local buckling and its correction process, the phenomena observed in the experiment could be simulated by elastic plastic large deformation analysis. Therefore, it was identified that the factors dominating the mechanical behavior of box columns corrected by heating/pressing were the residual imperfection and the increase of yield stress.
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	37
号	1
開始ページ	101
終了ページ	108
刊行年月	2008-07
ISSN	03874508
NCID	AA00867058
URL	http://hdl.handle.net/11094/7172
言語	英語
カテゴリ	紀要論文 Departmental Bulletin Paper
カテゴリ	Transactions of JWRI / Vol.37 No.1 (2008-07)

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.37(1) P.101-P.108
DC.title	Identification of Factors Dominating Mechanical Behavior of Box Columns Corrected by Heating/Pressing
DC.creator	Hirohata, Mikihito
DC.creator	Kim, You-Chul
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	2008-07
DC.identifier" scheme="DCTERMS.URI	http://hdl.handle.net/11094/7172
DC.subject	Correction by Heating/Pressing
	Buckling
	Ultimate Strength
	Residual Imperfection
	Work Hardening
DCTERMS.abstract	A series of experiments and numerical simulations were carried out to identify factors dominating mechanical behavior of box columns corrected by heating/pressing. Local buckling deformation was generated in the virgin columns by compressive loads and it was corrected by heating below the A₁ transformation temperature and pressing. After the correction, compressive loads were applied to the corrected columns again. Although the ultimate strengths of both the virgin and corrected columns were almost the same, the buckling mode of the corrected columns differed from that of the virgin columns. When considering the geometric residual imperfection resulting from incomplete correction by heating/pressing and the increase of yield stress due to large plastic deformation caused by local buckling and its correction process, the phenomena observed in the experiment could be simulated by elastic plastic large deformation analysis. Therefore, it was identified that the factors dominating the mechanical behavior of box columns corrected by heating/pressing were the residual imperfection and the increase of yield stress.
citation_title	Identification of Factors Dominating Mechanical Behavior of Box Columns Corrected by Heating/Pressing
citation_author	Hirohata, Mikihito
citation_author	Kim, You-Chul
citation_publisher	大阪大学接合科学研究所
citation_language	英語
citation_date	2008-07
citation_journal_title	Transactions of JWRI
citation_volume	37
citation_issue	1
citation_firstpage	101
citation_lastpage	108
citation_issn	03874508
citation_public_url	http://hdl.handle.net/11094/7172
citation_keywords	Correction by Heating/Pressing
	Buckling
	Ultimate Strength
	Residual Imperfection
	Work Hardening

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