Failure analysis of dissimilar thickness resistance spot welded joints in dual-phase steels during tensile shear test

被引：41

作者：

Zhang, Hongqiang ^{[1
]}

Qiu, Xiaoming ^{[1
]}

Xing, Fei ^{[1
]}

Bai, Jie ^{[1
]}

Chen, Jianhe ^{[2
]}

机构：

[1] Jilin Univ, Key Lab Automobile Mat, Minist Educ, Sch Mat Sci & Engn, Changchun 130025, Peoples R China

[2] Sanyou Automobile Parts Mfg Co Ltd, Changchun 130022, Peoples R China

来源：

MATERIALS & DESIGN | 2014年 / 55卷

关键词：

Ferrous metals and alloys; Welding; Fracture; MECHANICAL PERFORMANCE; MODE TRANSITION; DP600; MICROSTRUCTURE; SINGLE; SIZE;

D O I：

10.1016/j.matdes.2013.09.040

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Investigating the failure mode and failure mechanism of the dissimilar thickness dual phase sheets resistance spot welding joints was the objective of this study. Three distinct failure modes were observed during the tensile shear test: interfacial, partial interfacial and pullout failure. The results of the stress analysis of welded joints show that the tensile stress leads to the interfacial failure and the shear stress leads to the pullout failure. Due to more serious stress concentration and heat affected zone (HAZ) softening of DP780 side, the fracture is initiated from the DP780 steel. (C) 2013 Elsevier Ltd. All rights reserved.

引用

页码：366 / 372

页数：7

共 31 条

[1]

[Anonymous], 2008, 26502008 GBT

[2]

[Anonymous], 2009, Advanced High Strength Steel (AHSS) Application Guidelines V4.1

[3] Deformation behaviour of spot-welded high strength steels for automotive applications [J].

Brauser, S. ;

Pepke, L. A. ;

Weber, G. ;

Rethmeier, M. .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2010, 527 (26) :7099-7108

[4]

Chao YJ, 2003, SCI TECHNOL WELD JOI, V8, P133, DOI 10.1179/136217103225008955

[5] Evaluation of weldability for resistance spot welded single-lap joint between GA780DP and hot-stamped 22MnB5 steel sheets [J].

Choi, Hong-Seok ;

Park, Geun-Hwan ;

Lim, Woo-Seung ;

Kim, Byung-min .

JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY, 2011, 25 (06) :1543-1550

[6] A finite element to simulate the failure of weld points on impact [J].

Combescure, A ;

Delcroix, F ;

Caplain, L ;

Espanol, S ;

Eliot, P .

INTERNATIONAL JOURNAL OF IMPACT ENGINEERING, 2003, 28 (07) :783-802

[7] Experimental and modeling investigation of the failure resistance of Advanced High Strength Steels spot welds [J].

Dancette, S. ;

Fabregue, D. ;

Massardier, V. ;

Merlin, J. ;

Dupuy, T. ;

Bouzekri, M. .

ENGINEERING FRACTURE MECHANICS, 2011, 78 (10) :2259-2272

[8] The robustness of dynamic vehicle performance to spot weld failures [J].

Donders, S ;

Brughmans, M ;

Herrnans, L ;

Liefooghe, C ;

Van der Ameraer, H ;

Desmet, W .

FINITE ELEMENTS IN ANALYSIS AND DESIGN, 2006, 42 (8-9) :670-682

[9] Influence of microstructure and weld size on the mechanical behaviour of dissimilar AHSS resistance spot welds [J].

Hernandez, V. H. Baltazar ;

Kuntz, M. L. ;

Khan, M. I. ;

Zhou, Y. .

SCIENCE AND TECHNOLOGY OF WELDING AND JOINING, 2008, 13 (08) :769-776

[10]

Keenigsberger F., 1948, DESIGN WELDING MECH

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