应用科学学报 ›› 1996, Vol. 14 ›› Issue (3): 279-284.

• 论文 • 上一篇    下一篇

动态应变疲劳干涉模型

徐人平, 段小建   

  1. 云南工业大学
  • 收稿日期:1994-10-11 修回日期:1995-11-30 出版日期:1996-09-30 发布日期:1996-09-30
  • 作者简介:徐人平:副教授,云南工学院机械工程系,昆明 650051

STRAIN-STRENGTH TIME MODEL(SSTM)

XU RENPING, DUN XIANJIAN   

  1. Yunnan Polytechnic University
  • Received:1994-10-11 Revised:1995-11-30 Online:1996-09-30 Published:1996-09-30

摘要: 鉴于应变载荷和应变强度的随机波动性和可靠性的时间变化性,该文建立了动态应变疲劳干涉模型,算例演示了两种情况下(Manson-Coffin公式和三参数幂函数公式P~ε~N曲线)动态应变可靠度的计算方法.

关键词: 可靠性, 动态应变疲劳, 干涉模型

Abstract: In this paper, the strain-strength time model(SSTM) is presented on the basis of the random wave of strain-load and strain-strength and the changeability of reliability with time.Examples are given,showing the calculation methods of strain reliability with time by means of the P-ε-N curve of the Manson-Coffin formula and the three-parameter power function.

Key words: reliability, strain fatigue, strain-strength time model (SSTM)