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

Table 3

Structural sensitivity design.

Structure parameter	Scheme	Pressure (kPa)	Load (N)	Change
Current theoretical design section	1	600	71000	—
Steel wire strengthened layer height	2	600	71000	Add 10 mm
	3	600	71000	Add 18 mm
	4	600	71000	Add 28 mm
Height of carcass turn-up edge	5	600	71000	Reduce 4.5 mm
	6	600	71000	Reduce 13.5 mm
	7	600	71000	Reduce 22.5 mm
	8	600	71000	Reduce 27 mm
Four-layer belt structure	9	600	71000	—
The width of 2# belt	10	600	71000	Add 2.5 mm
	11	600	71000	Add 5 mm
	12	600	71000	Add 7.5 mm
	13	600	71000	Add 10 mm
	14	600	71000	Reduce 2.5 mm
	15	600	71000	Reduce 5 mm