航空学报 > 1988, Vol. 9 Issue (7): 338-341

P-S-N曲线拟合法

傅惠民1, 高镇同1, 梁美训2   

  1. 1. 北京航空航天大学;2. 上海交通大学
  • 收稿日期:1987-04-18 修回日期:1900-01-01 出版日期:1988-07-25 发布日期:1988-07-25

A METHOD FOR FITTING P-S-N CURVE

Fu Huimin1, Gao Zhentong1, Ling Meixun2   

  1. 1. Beijing University of Aeronautics and Astronautics;2. Shanghai Jiao Tong University
  • Received:1987-04-18 Revised:1900-01-01 Online:1988-07-25 Published:1988-07-25

摘要: 本文给出了一种计算So的方法。该方法可以使P-S-N曲线试验数据在双对数坐标系lgN-lg(S—So)中最大限度地呈现线性关系。我们对一百多条S-N曲线和P-S-N曲线试验数据进行了处理,曲线拟合程度均很好。

Abstract: A method for evaluating the parameters. To obtain a linear relationship between logN and log(S-S0)from test data of P-S-N curve is presented in this paper. Many fatigue test results of metallic and nonmetall-ic materials have been treated by the method with sati sfaction,