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低应力高周疲劳的寿命计算
THE CALCULATION FOR THE LOW STRESS AND HIGH CYCLE FATIGUE LIFE
【摘要】 在适用于中、长寿命的S—N公式的基础上,提出了对低应力、高周疲劳的一种新的疲劳寿命估算公式,并用实验室试验和实际使用进行了验证。在低应力、高周循环疲劳寿命的估算中,这一新的公式比常用的公式更准确些。
【Abstract】 A new formula for estimated the low stress and high cycle fatigue life is proposed on the basis ofS-N relationship for median-long life range. The calculated results are verified in agreement with the test and using results. The new formula has more accurate for the life estimation of the low stress and high cycle fatigue thanpresent ones.
【关键词】 累积疲劳损伤;
疲劳寿命;
估算;
应力谱;
【Key words】 cumulative ratigue damage; fatlgue life; estimation; stress spectrum;
【Key words】 cumulative ratigue damage; fatlgue life; estimation; stress spectrum;
- 【文献出处】 机械强度 ,JOURNAL OF MECHANICAL STRENGTH , 编辑部邮箱 ,1996年04期
- 【分类号】O346.2
- 【被引频次】9
- 【下载频次】276