Simple Finite Element Model to Study Influence of Microstructure upon Ductility of Duplex High Strength Steel

Murakawa, Hidekazu; Serizawa, Hisashi; Katayama, Kazuaki

doi:https://doi.org/10.18910/9197

Simple Finite Element Model to Study Influence of Microstructure upon Ductility of Duplex High Strength Steel

Murakawa, Hidekazu; Serizawa, Hisashi; Katayama, Kazuaki

Transactions of JWRI, 2007, 36(2), 67-71

アクセス数:430件（2025-07-18 17:21 集計）

固定URL: https://doi.org/10.18910/9197

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タイトル	Simple Finite Element Model to Study Influence of Microstructure upon Ductility of Duplex High Strength Steel
著者	NRID 1000060166270 1000060166270 著者名 Murakawa, Hidekazu
	NRID 1000020294134 1000020294134 ORCID 0000-0002-9890-7772 0000-0002-9890-7772 researchmap permalink read0051742 read0051742 Scopus Author ID 7101967093 7101967093 著者名 Serizawa, Hisashi
	著者名 Katayama, Kazuaki
キーワード等	Finite Element Method
	Martensite Transformation
	Volumetric Change
	Interface Element
	Crack growth
抄録	In the development of superior high strength - high toughness welding steel materials, a balance between strength and toughness is necessary. A numerical study is carried out to clarify the influence of micro structure on strength and toughness and to establish a concept of strength - toughness balance. The effect of phase transformation, yielding behavior and crack growth on maximum strength of a plate with initial cracks is investigated. It is shown that expansion during phase transformation may increase brittle fracture strength. Two failure modes are distinguished, a plastic deformation dominant failure mode associated with low plastic strength, and a crack growth dominant failure mode associated with high plastic strength. A concept of strength toughness balance is proposed in which plastic strength and surface energy have values in the transition between these two failure modes where maximum joint strength is observed.
出版者	大阪大学接合科学研究所
	オオサカダイガクセツゴウカガクケンキュウジョ
	Joining and Welding Research Institute, Osaka University
収録物名	Transactions of JWRI
巻(号)	36(2)
ページ	67-71
刊行年月	2007-12
言語	英語
ハンドルURL	https://hdl.handle.net/11094/9197
DOI	https://doi.org/10.18910/9197
PISSN	03874508
NCID	AA00867058
アクセス権	open access
出版タイプ	Version of Record
カテゴリ	紀要論文 Departmental Bulletin Paper
カテゴリ	Transactions of JWRI / Vol.36 No.2 (2007-12)

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. 2007, 36(2), p. 67-71
DC.title	Simple Finite Element Model to Study Influence of Microstructure upon Ductility of Duplex High Strength Steel
DC.creator	Murakawa, Hidekazu
	Serizawa, Hisashi
	Katayama, Kazuaki
DC.publisher	大阪大学接合科学研究所
	オオサカダイガクセツゴウカガクケンキュウジョ
	Joining and Welding Research Institute, Osaka University
DC.language' scheme='DCTERMS.RFC1766	英語
DC.type' scheme='DCTERMS.DCMIType	text
DCTERMS.issued' scheme='DCTERMS.W3CDTF	2007-12
DC.subject	Finite Element Method
	Martensite Transformation
	Volumetric Change
	Interface Element
	Crack growth
DCTERMS.abstract	In the development of superior high strength - high toughness welding steel materials, a balance between strength and toughness is necessary. A numerical study is carried out to clarify the influence of micro structure on strength and toughness and to establish a concept of strength - toughness balance. The effect of phase transformation, yielding behavior and crack growth on maximum strength of a plate with initial cracks is investigated. It is shown that expansion during phase transformation may increase brittle fracture strength. Two failure modes are distinguished, a plastic deformation dominant failure mode associated with low plastic strength, and a crack growth dominant failure mode associated with high plastic strength. A concept of strength toughness balance is proposed in which plastic strength and surface energy have values in the transition between these two failure modes where maximum joint strength is observed.
DC.identifier	10.18910/9197
DC.format	9197
citation_title	Simple Finite Element Model to Study Influence of Microstructure upon Ductility of Duplex High Strength Steel
citation_author	Murakawa, Hidekazu
	Serizawa, Hisashi
	Katayama, Kazuaki
citation_publisher	大阪大学接合科学研究所
citation_language	英語
citation_date	2007-12
citation_journal_title	Transactions of JWRI
citation_volume	36
citation_issue	2
citation_firstpage	67
citation_lastpage	71
citation_public_url	https://hdl.handle.net/11094/9197
citation_doi_detail	10.18910/9197
citation_doi	https://doi.org/10.18910/9197

Simple Finite Element Model to Study Influence of Microstructure upon Ductility of Duplex High Strength Steel

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