摘要
根据有平均应力情况下的韧性材料疲劳寿命曲线的变化规律，建立了韧性材料高次循环疲劳寿命起始点Ｎｓ与平均应力σｍ之间的关系式，从而改进了韧性材料疲劳寿命曲线的经典表达式，这对韧性材料的疲劳寿命的正确计算是很重要的．
This paper, based on the law of tough material fatigue life-span with average stress, establishes a relative expression between the start point Ns of tough material fatigue life- span curve in high time circulatory area and average stress σm, thereby has improved the classical expression for tough material fatigue life-span. It is very important for correct calculation of tough material fatigue life - span.
出处
《同济大学学报（自然科学版）》
EI
CAS
CSCD
1996年第6期692-697,共6页
Journal of Tongji University:Natural Science
关键词
疲劳寿命曲线
疲劳极限图
韧性材料
Fatigue life-span curve
Fatigue limit diaphragm
Start point N_s of fatigue life - span
Average stress σ_m.
