Application of a Recurrent Neural Network and Simplified Semianalytical Method for Continuous Strain Histories Estimation

Table 1

Material properties for each part of the torsion beam suspension.

	Rotatable supporting	Trailing arm	Torsion beam	Spring seat	Buffer seat	Flange part	Reinforcing beam
Thickness (mm)	Solid	4	4.5	4	10	6	Solid
Ultimate tensile strength (MPa)	440	550	568	550	470	510	537
Yield strength (MPa)	235	345	432	430	310	416	305
Elasticity modulus (MPa)	2.07E5	2E5	2E5	2E5	2E5	2E5	2.07E5
Fatigue strength coefficient (MPa)	2144	917	950	917	570	421	1517
Fatigue strength exponent	−0.179	−0.095	−0.095	−0.095	−0.09	−0.09	−0.14
Fatigue ductility coefficient	2.145	0.26	0.117	0.662	0.03	0.13	0.312
Fatigue ductility exponent	−0.715	−0.47	−0.597	−0.628	−0.29	−0.35	−0.584