Investigation of Interface Layer Failure and Shear Strength of CMT Brazed Lap Joints in Dissimilar Materials

Lin, Jian; Ma, Ninshu; Lei, Yongping; Murakawa, Hidekazu

doi:https://doi.org/10.18910/12567

Investigation of Interface Layer Failure and Shear Strength of CMT Brazed Lap Joints in Dissimilar Materials

Lin, Jian; Ma, Ninshu; Lei, Yongping et al.

Transactions of JWRI, 2011, 40(1), 101-107

Number of Access:617（2025-07-18 10:09 Counts）

Identifier to cite or link to this item: https://doi.org/10.18910/12567

Link to primary information

File	Format	Terms of use	Size	Views	Date.Available	Description	information
jwri40_01_101	pdf	None	421 KB	254	2012.09.22

Item Information

Output File Export EndNote Basic Export Mendeley

Title	Investigation of Interface Layer Failure and Shear Strength of CMT Brazed Lap Joints in Dissimilar Materials
Creator	CreatorName Lin, Jian
	NRID 1000010263328 1000010263328 ORCID 0000-0002-8088-4154 0000-0002-8088-4154 researchmap permalink ma.ninshu ma.ninshu Scopus Author ID 36343934100 36343934100 CreatorName Ma, Ninshu
	CreatorName Lei, Yongping
	NRID 1000060166270 1000060166270 CreatorName Murakawa, Hidekazu
Subject	Cold metal transfer
	Steel/Al dissimilar materials joint
	Interface layer
	Shear strength
	Numerical estimation
Abstract	In order to save fuel consumption by reducing the weight of automobile body, the use of aluminum alloys has a great advantage. However, how to join aluminum alloys with steels becomes a big problem in the assembly lines. Cold metal transfer (CMT) is a promising joining process for steel/Al dissimilar materials. To evaluate the shear strength and to investigate the failure modes of CMT brazed lap joints of dissimilar materials, both experimental observation and numerical simulation are performed. A numerical model for the interface layer and for the failure criteria of the interface layer between steel and aluminum is developed. The interface layer of CMT brazed lap joint can be modeled by the interface element. The failure stress and failure energy at the interface element are proposed as the failure criteria for the prediction of shear strength of CMT lap joints. If steel sheet thickness becomes thicker, stress distribution and concentration at interface layer elements have some change and shear strength at the interface layer can be improved. Then the failure occurring at the interface element may transfer to the fusion line at the side of the aluminum alloy sheet.
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
Source Title	Transactions of JWRI
Volume (Issue)	40(1)
Page	101-107
Date of Issued	2011-06
Language	English
Handle URL	https://hdl.handle.net/11094/12567
DOI	https://doi.org/10.18910/12567
PISSN	03874508
NCID	AA00867058
Access Rights	open access
oaire:version	Version of Record
Category	紀要論文 Departmental Bulletin Paper
Category	Transactions of JWRI / Vol.40 No.1 (2011-06)

Resource Type	departmental bulletin paper
Local Type	Departmental Bulletin Paper
DCMI Type	Text
DCTERMS.bibliographicCitation	Transactions of JWRI. 2011, 40(1), p. 101-107
DC.title	Investigation of Interface Layer Failure and Shear Strength of CMT Brazed Lap Joints in Dissimilar Materials
DC.creator	Lin, Jian
	Ma, Ninshu
	Lei, Yongping
	Murakawa, Hidekazu
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	English
DC.type' scheme='DCTERMS.DCMIType	Text
DCTERMS.issued' scheme='DCTERMS.W3CDTF	2011-06
DC.subject	Cold metal transfer
	Steel/Al dissimilar materials joint
	Interface layer
	Shear strength
	Numerical estimation
DCTERMS.abstract	In order to save fuel consumption by reducing the weight of automobile body, the use of aluminum alloys has a great advantage. However, how to join aluminum alloys with steels becomes a big problem in the assembly lines. Cold metal transfer (CMT) is a promising joining process for steel/Al dissimilar materials. To evaluate the shear strength and to investigate the failure modes of CMT brazed lap joints of dissimilar materials, both experimental observation and numerical simulation are performed. A numerical model for the interface layer and for the failure criteria of the interface layer between steel and aluminum is developed. The interface layer of CMT brazed lap joint can be modeled by the interface element. The failure stress and failure energy at the interface element are proposed as the failure criteria for the prediction of shear strength of CMT lap joints. If steel sheet thickness becomes thicker, stress distribution and concentration at interface layer elements have some change and shear strength at the interface layer can be improved. Then the failure occurring at the interface element may transfer to the fusion line at the side of the aluminum alloy sheet.
DC.identifier	10.18910/12567
DC.format	12567
citation_title	Investigation of Interface Layer Failure and Shear Strength of CMT Brazed Lap Joints in Dissimilar Materials
citation_author	Lin, Jian
	Ma, Ninshu
	Lei, Yongping
	Murakawa, Hidekazu
citation_publisher	大阪大学接合科学研究所
citation_language	English
citation_date	2011-06
citation_journal_title	Transactions of JWRI
citation_volume	40
citation_issue	1
citation_firstpage	101
citation_lastpage	107
citation_public_url	https://hdl.handle.net/11094/12567
citation_doi_detail	10.18910/12567
citation_doi	https://doi.org/10.18910/12567

Investigation of Interface Layer Failure and Shear Strength of CMT Brazed Lap Joints in Dissimilar Materials

Link to primary information

Item Information

Show details