一种随机多轴疲劳的寿命预测方法

被引:16
作者
王雷
王德俊
机构
[1] 东北大学机械工程与自动化学院
关键词
多轴疲劳; 随机载荷; 寿命预测; 临界平面; 循环计数;
D O I
10.16579/j.issn.1001.9669.2003.02.022
中图分类号
O346.2 [疲劳理论];
学科分类号
摘要
叙述一种多轴随机载荷的疲劳寿命预测方法。该方法首先由多轴随机载荷的权值平均最大剪应变平面确定临界平面 ,然后以临界平面上剪应变和正应变历史为研究对象 ,进行多轴载荷压缩处理和多轴循环计数 ,得到剪应变和正应变的循环计数结果。最后给出多轴疲劳寿命估算模型 ,并用多轴程序载荷实验验证。
引用
收藏
页码:204 / 206+232 +232
页数:4
相关论文
共 6 条
  • [1] Shear strain based multiaxial fatigue parameters applied to variable amplitude loading. Kim K S,Park J C. International Journal of Fatigue . 1999
  • [2] Stochastic modeling of low-cycle fatigue damage in 316L stainless steel under variable multiaxial loading.Fatigue Fract. Engng. Bee B H. Materials and Structures . 2000
  • [3] Low-cycle fatigue under non-proportional loading. Chen X,Gzo Q,Sun X F. Fatigue Fract. Eng. Mater. Struct . 1996
  • [4] A path-independent parameter for fatigue under proportional and non-proportional loading. Wang C H,Brown M W. Fatigue Fract. Eng. Mater.Struct . 1993
  • [5] A new multiaxial fatigue damage model based on the critical plane approach. Shang D G,Wang D J. International Journal of Fatigue . 1998
  • [6] A critical plane approach to multiaxial fatigue damage including out-of phase loading. Fatemi A,Socie D F. Fatigue Eng. Mater. Struct . 1988