Prediction of Cross-Tension Strength of Self-Piercing Riveted Joints Using Finite Element Simulation and XGBoost Algorithm

Chinese Journal of Mechanical Engineering

Table 5 Hollomon model parameters and thickness of bottom sheet material used in the simulation

Bottom sheet material	K (MPa)	n	Bottom sheet thickness (mm)
S-6000-IH	390.0	0.21	1.2, 1.3, 1.4, 1.5, 1.6, 1.7, 1.8, 1.9, 2.0
AA6022-T4	449.6	0.18	1.2, 1.3, 1.4, 1.5, 1.6, 1.7, 1.8, 1.9, 2.0
M1	419.8	0.20	1.2, 1.3, 1.4, 1.5, 1.6, 1.7, 1.8, 1.9, 2.0
M2	510.0	0.16	1.2, 1.3, 1.4, 1.5, 1.6, 1.7, 1.8, 1.9, 2.0
M3	390.0	0.30	1.2, 1.5, 2.0
M4	390.0	0.40	1.2, 1.5, 2.0
M5	510.0	0.30	1.2, 1.5, 2.0
M6	510.0	0.40	1.2, 1.5, 2.0