MCMC-Based Fatigue Crack Growth Prediction on 2024-T6 Aluminum Alloy

Table 7

Parameter Estimate of fatigue crack propagation curve.

Parameter	Mean	Standard deviation	MC-error (%)	Different percentile
				0.025	0.05	0.5	0.95	0.975
μ1	3.1390	0.3344	0.09	2.4860	2.638	3.1390	3.641	3.7940
μ2	−0.4979	0.1209	0.04	−0.7369	−0.6819	−0.4977	−0.3163	−0.2605
Σ11	0.4434	1.1000	0.37	0.0787	0.09277	0.2627	1.245	1.8240
Σ12	−0.0881	0.3623	0.12	−0.4487	−0.301	−0.0468	0.0212	0.0507
Σ21	−0.0881	0.3623	0.12	−0.4487	−0.301	−0.0468	0.0212	0.0507
Σ22	0.0581	0.1555	0.06	0.0095	0.01134	0.0341	0.1653	0.2420
σ	0.0251	0.0030	0.01	0.0201	0.02073	0.0248	0.03045	0.0318