A Fatigue Evaluation Method for Radial Tire Based on Strain Energy Density Gradient

Table 1

Tire endurance test conditions and results summary.

Tire model	Number	Pressure (kPa)	Load (N)	Damage form	Life (h)
11.00R20	1	600	71000	Left bead area crack	40.17
	2	600	71000	Left bead area crack	44.45
	3	600	71000	Right bead area crack	60.12
12.00R20	1	830	75000	Right shoulder area crack	119.23
	2	830	75000	Right bead area crack	72.88
	3	830	75000	Left bead area crack	102.53
	4	830	75000	Right shoulder and bead areas crack	117.12
	5	830	75000	Left and right bead areas crack	107.7
	6	830	75000	Right bead area crack	58.02
255/70R22.5	1	830	25000	Right shoulder area crack	60
	2	830	25000	Not destroyed	100+