LC9材料S—N曲线的测定及数据处理

MEASUREMENT AND DATA PROCESSING FOR S-N CURVE OF LC9 MATERIAL

根据LC9疲劳试验情况，阐述了S—N曲线的测定、绘制及数据处理方法；简要介绍了LC9应力集中系数为5的疲劳特征，及在指定寿命（N＝107）下的条件平均疲劳极限值。

This article describes the measurement, drawing and data Processing method of S-N curve according to the fatigue test of LC9 material, atid briefs the fatigue charaxcteristic of stress concen tration coefficient as 5 and the conditional mean fatigue limit und er the designative life (W= 107 )