Transactions of Materials and Heat Treatment

Title：Deformation characteristic and fatigue failure mechanism on self-piercing riveting joints for aluminium alloy

Authors： Zhang Xianlian Zhang Qing Fu Wensheng Tian Maotao

Unit： School of Mechanical Engineering Yangtze University

KeyWords： self-piercing riveting high-cycle fatigue plastic deformation fatigue deformation failure mechanism

ClassificationCode：TG316.3

year,vol(issue):pagenumber：2024,49(8):115-124

Abstract：

The fatigue tests for the self-piercing riveting (SPR) joints of similar aluminium alloy were carried out, and the fracture analysis and fatigue deformation analysis were conducted to explore the high-cycle fatigue failure mechanism and deformation characteristics of joints. The results show that during the load-bearing process of SPR joints, the single lap structure is affected by the secondary bending effect, resulting in significant warping deformation at the end of upper plate. In high-cycle fatigue tests, there are two types of fatigue failure modes, namely, upper plate fracture and lower plate fracture. There are several fatigue sources on the upper plate fracture, and the crack initiates at the bottom of upper plate, gradually extends to the top surface in a divergent manner. The two fatigue sources of the lower plate fracture are symmetrically distributed in the region, with one side as the main extended source area, and the end shows instantaneous fracture characteristics. The results and deformation characteristics of the stage suspension fatigue test indicate that the initiation life of fatigue crack is significantly longer than the propagation life of crack. The degree of fatigue deformation becomes more serious with the increasing of load level. In the stable growth stage of the fatigue deformation curve, there is a linear characteristic between the deformation amount of joint and the fatigue life.

Funds：

湖北省自然科学基金资助项目(2023AFB303)；湖北省工业物联网智能传感工程技术研究中心开放课题(KZX202205)

作者简介：张先炼（1992-），男，博士，讲师，硕士研究生导师 E-mail：xlianzhang@yangtzeu.edu.cn

Reference：

[1]He X C, Pearson I, Young K. Self-pierce riveting for sheet materials: State of the art [J]. Journal of Materials Processing Technology, 2008, 199(1-3): 27-36.

[2]Li D Z, Chrysanthou A, Patel I, et al. Self-piercing riveting-A review[J]. International Journal of Advanced Manufacturing Technology, 2017, 92:1777-1824.

[3]李永兵, 马运五, 楼铭, 等. 轻量化薄壁结构点连接技术研究进展[J]. 机械工程学报, 2020, 56(6):125-146.

Li Y B, Ma Y W, Lou M, et al. Advances in spot joining technologies of lightweight thin-walled structures[J]. Journal of Mechanical Engineering, 2020, 56(6):125-146.

[4]谢志强, 张爱林, 闫维明, 等. 冷弯薄壁型钢自冲铆接受拉性能及设计方法研究[J]. 建筑结构学报, 2020, 41(10):150-159.

Xie Z Q, Zhang A L, Yan W M, et al. Study on tension properties and design method for self-pierce riveting in cold-formed thin-walled steel[J]. Journal of Building Structures, 2020, 41(10):150-159.

[5]刘洋, 庄蔚敏, 施宏达. 自冲铆接头疲劳性能影响因素研究进展[J]. 材料导报, 2019, 33(6):1825-1830.

Liu Y, Zhuang W M, Shi H D. Influencing factors on fatigue performance of self-piercing riveted joints: A review[J]. Materials Reports, 2019, 33(6):1825-1830.

[6]魏文杰, 何晓聪, 张先炼, 等. DP780/AA6061薄板自冲铆接头微动损伤特性[J]. 机械工程学报, 2020, 56(6):169-175.

Wei W J, He X C, Zhang X L, et al. Characteristics of fretting damage in hybrid DP780/AA6061 self-piercing riveted joints[J]. Journal of Mechanical Engineering, 2020, 56(6):169-175.

[7]张永超, 黄志超, 贾颖莲. B1500HS高强度钢与AA5052铝合金自冲铆接成形与力学性能分析[J]. 塑性工程学报, 2021, 28(10):122-129.

Zhang Y C, Huang Z C, Jia Y L. Forming and mechanical properties analysis of self-piercing riveted joints of B1500HS high strength steel and AA5052 aluminum alloy[J]. Journal of Plasticity Engineering, 2021, 28(10):122-129.

[8]毛晓东, 刘庆永, 李利, 等. 5182-O铝合金板材自冲铆接工艺参数对接头组织和性能的影响[J]. 中国有色金属学报, 2021, 31(5):1239-1252.

Mao X D, Liu Q Y, Li L, et al. Effect of technological parameters on microstructure and properties of self-piercing riveting joints of 5182-O aluminum alloy sheets[J]. The Chinese Journal of Nonferrous Metals，2021, 31(5):1239-1252.

[9]邢保英, 何晓聪, 王玉奇, 等. 铝合金自冲铆接头疲劳性能及失效机理[J]. 焊接学报, 2016, 37(6):50-54,131.

Xing B Y, He X C, Wang Y Q, et al. Fatigue properties and failure mechanisms of self-piercing riveted joints in aluminium alloy[J]. Transactions of the China Welding Institution，2016, 37(6):50-54,131.

[10]Kang S H, Kim H K. Fatigue strength evaluation of self-piercing riveted Al-5052 joints under different specimen configurations[J]. International Journal of Fatigue, 2015, 80:58-68.

[11]Choi D H, Han D W, Kim H K. Fatigue life estimation of self-piercing riveted aluminum joints under mixed-mode loading[J]. International Journal of Fatigue, 2017, 97:20-28.

[12]Moraes J F C, Rao H M, Jordon J B, et al. High cycle fatigue mechanisms of aluminum self-piercing riveted joints[J]. Fatigue & Fracture of Engineering Materials and Structures, 2018, 41:57-70.

[13]Huang L, Shi Y D, Guo H D, et al. Fatigue behavior and life prediction of self-piercing riveted joint[J]. International Journal of Fatigue, 2016, 88:96-110.

[14]Huang L, Guo H D, Shi Y D, et al. Fatigue behavior and modeling of self-piercing riveted joints in aluminum alloy 6111[J]. International Journal of Fatigue, 2017, 100:274-284.

[15]Li D Z, Han L, Thornton M, et al. Influence of rivet to sheet edge distance on fatigue strength of self-piercing riveted aluminium joints[J]. Materials Science & Engineering A, 2012, 558:242-252.

[16]Zhao L, He X C, Xing B Y, et al. Influence of sheet thickness on fatigue behavior and fretting of self-piercing riveted joints in aluminum alloy 5052[J]. Materials and Design, 2015, 87:1010-1017.

(上接第93页)

Jiao N N. Effect of Zn on Mechanical Properties and Microstructure of Al-Mg-Si Alloy [D].Changsha：Hunan University，2020.

[10]周维，张至柔，赵仕林，等. Cr、Mn质量比对Al-Mg-Si合金组织和力学性能的影响 [J].中国有色金属学报，2022，32 (8)：2185-2197.

Zhou W，Zhang Z R，Zhao S L，et al. Effect of Cr-Mn mass ratio on microstructure and mechanical properties of Al-Mg-Si alloy [J]. The Chinese Journal of Nonferrous Metals，2022，32 (8)：2185-2197.

[11]王飞，祖立成，黄大为，等. 终轧温度对6061铝合金板力学性能均匀性的影响 [J].热加工工艺，2022，51 (9)：43-51.

Wang F，Zu L C，Huang D W，et al. Effect of final rolling temperature onuniformity of mechanical properties of 6061 aluminum alloy plate [J]. Hot Working Technology，2022，51 (9)：43-51.

[12]GB/T 16865—2023，变形铝、镁及其合金加工制品拉伸试验用试样及方法[S].

GB/T 16865—2023，Test pieces and methods for tensile test for wrought aluminium, magnesium and their alloy products[S].

[13]赵紫研. Cr对6xxx系铝合金组织性能及弥散相的影响 [D]. 沈阳：东北大学，2018.

Zhao Z Y. Effect of Cr Content on Microstructure，Mechanical Properties and Dispersions of 6xxx Aluminum Alloy [D]. Shenyang：Northeastern University，2018.

[14]张新明，周志乐，唐建国，等. Cr元素对Al-Mg-Si-Cu铝合金组织与性能的影响 [J].材料工程，2013(12):49-53,58.

Zhang X M，Zhou Z L，Tang J G，et al. Effects of Cr on microstructure and properties of Al-Mg-Si-Cu aluminum alloy [J]. Journal of Materials Engineering，2013(12):49-53,58.

[15]Bjurenstedt A，Casari D，Seifeddine S，et al. In-situ study of morphology and growth of primary alpha-Al(FeMnCr)Si intermetallics in an Al-Si alloy [J]. Acta Materialia，2017，130 (15)：1-9.

[16]徐义，牛魁，钟剑，等. Mn和Cr对6xxx铝合金再结晶行为的影响 [J].金属热处理，2019，44(9)：27-31.

Xu Y，Niu K，Zhong J，et al. Effects of Mn and Cr on recrystallization behavior of 6xxx aluminum alloy [J]. Heat Treatment of Metals，2019，44(9)：27-31.

Service：

【This site has not yet opened Download Service】【Add Favorite】