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YU Xi, WEI Guoqian, LI Shanshan, YE Fan, CHEN Siwen. Numerical simulation analysis of crack propagation in weld toe considering multiple cracks[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2019, 40(7): 88-93. DOI: 10.12073/j.hjxb.2019400187
Citation: YU Xi, WEI Guoqian, LI Shanshan, YE Fan, CHEN Siwen. Numerical simulation analysis of crack propagation in weld toe considering multiple cracks[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2019, 40(7): 88-93. DOI: 10.12073/j.hjxb.2019400187

Numerical simulation analysis of crack propagation in weld toe considering multiple cracks

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  • Received Date: May 28, 2018
  • Aiming at the existence of multiple cracks at the weld toe, the numerical simulation of the multi-crack propagation process was carried out. Consider the short crack growth stage. The M-integral is used to calculate the stress intensity factor of the entire crack front. The specific influence of this factor on the propagation behavior before and after the fusion of the crack front is simulated and analyzed. The results show that the difference in crack spacing will directly lead to the difference. The influence of the stress intensity factor before and after the fusion of the crack front is different. The shape of the crack front has different shapes due to the initial crack spacing. The relative crack spacing L/a=1 boundary inflection point can be used as an effective reference for subsequent engineering research. The fatigue test of the cross-welded joint was carried out, and the simulation results were verified.
  • 张晓光,孙正,胡晓磊,等.射线检测图像中焊缝和缺陷的提取方法[J].焊接学报, 2011, 32(2):77-80 Zhang Xiaoguang, Sun Zheng, Hu Xiaolei, et al. Extraction method of welding seam and defect in ray testing image[J]. Transactions of the China Welding Institution, 2011, 32(2):77-80
    刘刚,高明,黄一,等.非线性分布应力对焊接接头表面裂纹扩展的影响[J].船舶力学, 2014(3):291-302 Liu Gang, Gao Ming, Huang Yi, et al. Effect of nonlinear distribution stress on surface crack growth at welded joints[J]. Journal of Ship Mechanics, 2014(3):291-302
    Khan I A, Bhasin V, Chattopadhyay J, et al. Characterisation of crack tip stresses in elastic-perfectly plastic material under mode-I loading[J]. International Journal of Mechanical Sciences, 2011, 53(3):207-216.
    徐磊,黄小平.焊趾处椭圆表面裂纹的权函数与残余应力强度因子的权函数法[J].船舶力学, 2014, 21(3):291-302 Xu Lei, Huang Xiaoping. Weight function for weld toe semi-elliptical surface crack and calculating residual stress intensity factors by weight function method[J]. Journal of Ship Mechanics, 2014, 21(3):291-302
    Jinescu V V, Nicolof V I. Strength criteria at the tip of the crack[J]. Engineering Fracture Mechanics, 2015, 142(4):108-115.
    宋占勋,方少轩,谢基龙,等. T形焊接接头根部裂纹应力强度因子研究[J].机械工程学报, 2013, 49(2):87-94 Song Zhanxun, Fang Shaoxuan, Xie Jilong, et al. Research on stress intensity factors for weld root crack of T-butt[J]. Journal of Mechanical Engineering, 2013, 49(2):87-94
    Pang J H L, Hoh H J, Tsang K S, et al. Fatigue crack propagation analysis for multiple weld toe cracks in cut-out fatigue test specimens from a girth welded pipe[J]. International Journal of Fatigue, 2017, 94:158-165.
    Knowles J K, Eli Sternberg. On a class of conservation laws in linearized and finite elastostatics[J]. Archive for Rational Mechanics and Analysis, 1972, 44(3):187-211.
    Moreno B, Martin A, Lopez-Crespo P, et al. Estimations of fatigue life and variability under random loading in aluminum Al-2024T351 using strip yield models from NASGRO[J]. International Journal of Fatigue, 2016, 91:414-422.
    Aygül M, Al-Emrani M, Barsoum Z, et al. An investigation of distortion-induced fatigue cracking under variable amplitude loading using 3D crack propagation analysis[J]. Engineering Failure Analysis, 2014, 45(45):151-163.
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