Fatigue strength and failure analysis of weld-bonded joint of stainless steel

被引：10

作者：

Xiao, Zhijie ^{[1
]}

Zeng, Kai ^{[1
]}

He, Xiaocong ^{[1
]}

Zhang, Long ^{[1
]}

机构：

[1] Kunming Univ Sci & Technol, Inst Mech & Elect Engn, Innovat Mfg Res Ctr, Kunming 650500, Yunnan, Peoples R China

来源：

JOURNAL OF ADHESION | 2019年 / 95卷 / 03期

基金：

中国国家自然科学基金;

关键词：

Weld-bonded joint; stainless steel; non-destructive testing; fatigue; load-life curves; fracture;

D O I：

10.1080/00218464.2017.1414605

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Quasi-static tests of spot welded and weld-bonded joints with 1.5 mm-thick SUS304 stainless steel sheets were conducted. Joint weld diameters were measured using scanning acoustic microscopy. Fatigue tests were performed to obtain the fatigue lives of two joint types subjected to different stress levels. The equations of load-life curves were obtained by nonlinear regression using a three parameter power function. Scanning electron microscopy was used to explore fatigue failure mechanisms of the joints. The results illustrate that nugget diameters of weld-bonded joints were smaller than those of spot welded joints. Their shear strength was lower, but weld-bonded joints showed a better fatigue performance than that of spot welded joints. Two fatigue failure modes were observed via testing: eyebrow failure mode and substrate fracture.

引用

页码：187 / 203

页数：17

共 23 条

[1] Finite element modeling of weld-bonded joints [J].

Al-Samhan, A ;

Darwish, SMH .

JOURNAL OF MATERIALS PROCESSING TECHNOLOGY, 2003, 142 (03) :587-598

[2] Resistance spot welding of AISI 430 ferritic stainless steel: Phase transformations and mechanical properties [J].

Alizadeh-Sh, M. ;

Marashi, S. P. H. ;

Pouranvari, M. .

MATERIALS & DESIGN, 2014, 56 :258-263

[3]

Almeida F. J. S. D., 2016, J ADHESION, P1

[4] Acoustic microscopy of internal structure of resistance spot welds [J].

Chertov, Andrey M. ;

Maev, Roman G. ;

Severin, Fedar M. .

IEEE TRANSACTIONS ON ULTRASONICS FERROELECTRICS AND FREQUENCY CONTROL, 2007, 54 (08) :1521-1529

[5]

Darwish SMH, 2011, ADV STRUCT MAT, V6, P1, DOI 10.1007/8611_2010_35

[6] Critical assessment of weld-bonded technologies [J].

Darwish, SMH ;

Ghanya, A .

JOURNAL OF MATERIALS PROCESSING TECHNOLOGY, 2000, 105 (03) :221-229

[7] Resistance Spot Weldability of Galvanize Coated and Uncoated TRIP Steels [J].

Emre, Hayriye Ertek ;

Kacar, Ramazan .

METALS, 2016, 6 (12)

[8] Fatigue strength and fatigue fracture mechanism of three-sheet spot weld-bonded joints under tensile-shear loading [J].

Fujii, Tomoyuki ;

Tohgo, Keiichiro ;

Suzuki, Yukinori ;

Yamamoto, Takahiro ;

Shimamura, Yoshinobu .

INTERNATIONAL JOURNAL OF FATIGUE, 2016, 87 :424-434

[9] Finite element analysis of torsional free vibration of adhesively bonded single-lap joints [J].

He, Xiaocong .

INTERNATIONAL JOURNAL OF ADHESION AND ADHESIVES, 2014, 48 :59-66

[10] Development of response surface model for tensile shear strength of weld-bonds of aluminium alloy 6061 T651 [J].

Khan, M. D. Faseeulla ;

Dwivedi, D. K. ;

Sharma, Satpal .

MATERIALS & DESIGN, 2012, 34 :673-678

← 1 2 3 →