Effect of Stress Ratio on Stress Intensity Factor of Type I Crack in A7N01 Aluminum Alloy

Abstract:

Article Preview

Taking the mode I crack of finite width plate as the research object, the nodal displacement extrapolation method of type I stress intensity factor is discussed, and the stress intensity factor expressed by nodal displacement is obtained. Taking A7N01 aluminum alloy as the research object, the finite element software ABAQUS was used to numerical simulation and analysis. The effect of stress ratio on stress intensity factor K I was discussed. The results showed that in the same crack size ratio a/W, the stress intensity factor increases with the increase of the stress ratio; at the same stress ratio R, the stress intensity factor increases with increasing crack size ratio. At the same time, change law of the stress intensity factor increase: under the condition of different stress ratio, when a/W≤0.6, the increase of stress intensity factor is almost consistent; when a/W>0.6, the increase of stress intensity factor will increase obviously.

Info:

Periodical:

Edited by:

Luis Rodríguez-Tembleque, Jaime Domínguez and Ferri M.H. Aliabadi

Pages:

259-264

Citation:

Y. T. Li et al., "Effect of Stress Ratio on Stress Intensity Factor of Type I Crack in A7N01 Aluminum Alloy", Key Engineering Materials, Vol. 774, pp. 259-264, 2018

Online since:

August 2018

Export:

Price:

$38.00

[1] Weiyuan Ni, Shanglei Yang, Jin Jia, et al: Rare Metal Materials and Engineering Vol. 11 (2016), p.2774.

[2] Liansheng Wu: Physicochemical Examination: Physics Division Vol. 5 (1995) , p.50.

[3] Tianyou Fan: Chinese Science: Mathematics Vol. 9 (1987), p.59.

[4] Yan Xu: Journal of Applied Mechanics Vol. 72 (2005), p.330.

[5] Zhifu Du, Yongbo Shao, Weidong Hu: Mechanical Strength Vol. 30 (2008), p.259.

[6] Wei Yang, Ning Zhang, Liang Xu: Journal of Shenyang University of Aeronautics and Astronautics Vol. 31 (2014), p.19.

[7] Bo Zhou, Shifeng Xue: Mechanics and Practice Vol. 39 (2017), p.371.

[8] YuanPeng Liu, Dinghua Zhang, YuanKun Gui, et al: Journal of Computer-Aided Design and Graphics Vol. 16 (2004), p.1382.