Table 7 Fatigue life of Q235B welded... | Emerald Publishing

Table 7

Fatigue life of Q235B welded joints predicted by different models under multi-stage load

Loading mode	Stress σ_i/MPa	Number of stress actions N_i/10⁴	Fatigue life under single-stage stress action N_fi/10⁴	Test life N_E/10⁴	The fatigue life predicted by different models N_f/10⁴
Loading mode	Stress σ_i/MPa	Number of stress actions N_i/10⁴	Fatigue life under single-stage stress action N_fi/10⁴	Test life N_E/10⁴	Miner model	The prediction model in GAO Huiying (2016)	Prediction model 1	Prediction model 2
	22.40	25.03	116.64
	23.30	53.07	95.17
1	25.10	44.35	64.81	158.05	63.49	110.43	195.08	214.89
	26.00	21.56	54.03
	30.90	14.04	22.15
	32.76	40.00	88.85
	34.29	40.00	73.87
2	35.81	40.00	61.98	173.03	64.25	93.40	139.24	163.93
	37.33	40.00	52.39
	38.86	13.03	44.53
	32.00	40.00	97.70
	33.52	40.00	80.98
3	35.05	40.00	67.60	252.87	61.33	75.43	90.73	96.69
	36.57	40.00	56.93
	38.10	92.87	48.24

Loading mode	Stress σ_i/MPa	Number of stress actions N_i/10⁴	Fatigue life under single-stage stress action N_fi/10⁴	Test life N_E/10⁴	The fatigue life predicted by different models N_f/10⁴
Loading mode	Stress σ_i/MPa	Number of stress actions N_i/10⁴	Fatigue life under single-stage stress action N_fi/10⁴	Test life N_E/10⁴	Miner model	The prediction model in GAO Huiying (2016)	Prediction model 1	Prediction model 2
	22.40	25.03	116.64
	23.30	53.07	95.17
1	25.10	44.35	64.81	158.05	63.49	110.43	195.08	214.89
	26.00	21.56	54.03
	30.90	14.04	22.15
	32.76	40.00	88.85
	34.29	40.00	73.87
2	35.81	40.00	61.98	173.03	64.25	93.40	139.24	163.93
	37.33	40.00	52.39
	38.86	13.03	44.53
	32.00	40.00	97.70
	33.52	40.00	80.98
3	35.05	40.00	67.60	252.87	61.33	75.43	90.73	96.69
	36.57	40.00	56.93
	38.10	92.87	48.24