摘要
通过几种非恒幅载荷疲劳寿命的计算，得出基于Ｐａｒｉｓ公式的等效载荷的ＣｙｃｌｅｂｙＣｙｃｌｅ方法计算疲劳寿命是一种有效的工程方法，它具有精度高、理论严密、易于实现等特点，同时非恒幅载荷下含表面裂纹对焊接头疲劳试验也证实了这个结论。
Through several calculation of the fatigue life of non-mnstant spectrum loading,the method of'Cycle by Cycle'based on the equivalent loading of Paris equation is made.It is a valuable method to calculate the fatigue Iife with high precision,sound theory and convenience.The calculated results were tested by the fatigue experiments of but t-welding joints containg surface crack under the non-constant spectrum loading.
出处
《南京化工大学学报》
1996年第2期64-70,共7页
Journal of Nanjing University of Chemical Technology(Natural Science Edition)
基金
国家"八五"攻关课题
关键词
疲劳
焊接
接头
裂纹
压力容器
variable amplitude loading fatigue life welding joint surface crack
