关键词: 疲劳, 寿命估算, 名义应力法

Abstract: This paper presents a two-parameter nominal-stress approach, which uses the Sa-Sm-N curved surface equation to calculate the fatigue damage of each cycle considering the effect of stress amplitude and mean simultaneously. Experimental results show that the fatigue life prediction accuracy is improved through the two-parameter nominal-stress approach.

Key words: fatigue, life prediction, nominal-stress approach