[1] [1] X Gu, G Sun, G Li, et al.. A comparative study on multiobjective reliable and robust optimization for crashworthiness design of vehicle structure[J]. Struct Multidisc Optim, 2013, 48(3): 669-684.

[2] [2] W Patrick. Advanced materials in automotive: Newer steels, aluminum, magnesium, and other materials lead to more lightweight, economical vehicles[J]. Manufacturing Engineering, 2009, 143(3): 153-159.

[3] [3] Zhang Yi, Tan Lipeng, Zhang Chenglei. Research on gap margin in laser butt welding of high-strength automobile steel with hot wire filler[J]. Chinese J Lasers, 2013, 40(7): 0703003.

[4] [4] Wu Qiang, Chen Genyu, Xu Lanying, et al.. CO2 laser welding of vehicle body[J]. Chinese J Lasers, 2007, 34(12): 1726-1731.

[5] [5] Wang Qingming, Sun Yuan. Research development on the test methods of residual stress[J]. Journal of Mechanical & Electrical Engineering, 2011, 28(1): 11-15.

[6] [6] Y F Kao, T D Lee, S K Chen, et al.. Electrochemical passive properties of AlxFeCrCoNi(x=0,0.25,0.5,1.0) alloys in sulfuric acids[J]. Corrosion Science, 2010, 52(3): 1026-1034.

[7] [7] Tang Muyao. Welding Test Technology[M]. Beijing: China Machine Press, 1988.

[8] [8] Zhao Haiyan, Chen Yuejun, Shi Yaowu, et al.. The measurement of residual stresses in welds zone[J]. Welding Pipe and Tube, 1997, 20(4): 12-17.

[9] [9] Zhao Haiyan, Pei Yi, Shi Yaowu, et al.. The influence and correction to the measuring error of high welding residual stress when using hole-drilling method[J]. Journal of Mechanical Strength, 1996, 18(3): 17-20.

[10] [10] He Xiaodong, Zhang Jianxun, Pei Yi, et al.. Effects of heat input on laser welding residual stress and distortion of TC4 titanium alloy [J]. Rare Metal Materials and Engineering, 2007, 36(5): 774-777.

[11] [11] P Lacki, K Adamus, P Wieczorek. Theoretical and experimental analysis of thermo-mechanical phenomena during electron beam welding process[J]. Computational Materials Science, 2014, 94: 17-26.

[12] [12] Shi Yifei, Shen Zhonghua, Ni Xiaowu, et al.. Welding stress measurement using laser-generated Rayleigh waves in aluminum alloys [J]. Chinese J Lasers, 2008, 35(10): 1627-1631.

[13] [13] He Enguang, Gong Shuili, Wu Bing, et al.. Residual stress measurements of the T- joints by the laser beam welding[J]. Electro Machining & Mould, 2010, (6): 32-35.

[14] [14] Wang Zhechang. Rediscussion on welding stress-strain[J]. Transactions of the China Welding Institution, 2006, 27(8): 108-112.