New multiaxial fatigue life prediction model with shear form based on the strain path

被引：3
作者：
Jiang, Chao [1 ]
Li, Bochuan [1 ]
Han, Xu [1 ]
机构：
[1] State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body, Hunan University, Changsha
来源：
Jiang, Chao (jiangc@hnu.edu.cn) | 1600年 / Chinese Mechanical Engineering Society卷 / 50期
关键词：
Critical plane method; Life prediction model; Mean hydrostatic strain; Multiaxial fatigue; Path-dependent factor;
D O I：
10.3901/JME.2014.16.021
中图分类号：
学科分类号：
摘要：
Many experimental data have demonstrated that the fatigue life under non-proportional loading, under the same equivalent strain, is far less than that under proportional loading. Therefore, based on the critical plane, a new multiaxial fatigue life prediction model as shear form based on the strain path is proposed. The maximum damage plane is defined as the critical plane and this model consists of four main damage parameters: normal and shear strain amplitudes on the critical plane, mean hydrostatic strain and a path-dependent factor. The path-dependent factor is presented to consider the influence of non-proportional loading. Meanwhile, the effect of the mean strain is corrected by the mean hydrostatic strain. It does not include any material constant which is very convenient for engineering design. Four kinds of materials are used to demonstrate the accuracy of the presented model. ©2014 Journal of Mechanical Engineering
引用
收藏
页码：21 / 26
页数：5
相关论文
共 18 条
  • [1] Karolczuk A., Macha E., A review of critical plane orientations in multiaxial fatigue failure criteria of metallic materials , International Journal of Fracture, 134, pp. 267-304, (2005)
  • [2] Brown M.W., Miller K.J., A theory for fatigue failure under multiaxial stress-strain conditions , 187, pp. 745-755, (1973)
  • [3] Wang C.H., Brown M.W., A path-independent parameter for fatigue under proportional and non-proportional loading , 16, pp. 1285-1298, (1993)
  • [4] Shang D.G., Wang D.J., A new multiaxial fatigue damage model based on the critical plane approach , International Journal of Fatigue, 20, pp. 241-245, (1998)
  • [5] Wang Y.Y., Yao W.X., A multiaxial fatigue criterion for various metallic materials under proportional and nonproportional loading , International Journal of fatigue, 28, pp. 401-408, (2006)
  • [6] Yang J., Li C., Xie S., Multiaxial fatigue life prediction method based on maximum damage critical plane , Journal of Aerospace Power, 26, 12, pp. 2783-2790, (2011)
  • [7] Fatemi A., Socie D.F., A Critical plane approach to multiaxial fatigue damage including out of plane loading , 14, pp. 149-165, (1988)
  • [8] Shukayev S., Deformation and life of titanium alloy BT9 under conditions of nonproportional low-cycle loading , 33, pp. 333-338, (2001)
  • [9] Walat K., Kurek M., Ogonowski P., Et al., The multiaxial random fatigue criteria based on strain and energy damage parameters on the critical plane for the low-cycle range , International Journal of Fatigue, 37, pp. 100-111, (2012)
  • [10] Itoh T., Nakata T., Sakane M., Et al., Nonproportional low cycle fatigue of 6061 aluminum alloy under 14 strain paths , Proceedings of Fifth International Conference Biaxial/Multiaxial Fatigue and Fracture, pp. 173-187, (1997)
12