A Modified Nonlinear Damage Accumulation Model for Fatigue Life Prediction Considering Load Interaction Effects

Table 2

Experimental data and the predicted results of 16Mn steel.

Loading stress level/Mpa	Load sequences	𝑛1	𝑛1/𝑁𝑓1	𝑛2	𝑛2/𝑁𝑓2 (E.)	𝑛2/𝑁𝑓2 (P.)	Error/%
562.9–392.3	High-low	1000	0.2520	56,300	0.7154	0.3411	−37.43
		1700	0.4284	476,000	0.6048	0.2263	−62.57
		2450	0.6174	22,900	0.2910	0.1358	−53.33
372.65–392.3	Low-high	64,400	0.240	62,800	0.7980	0.9028	13.13
		116,000	0.433	62,900	0.7990	0.7449	−6.77
		150,000	0.560	23,300	0.2960	0.6118	106.69