Why Do Tires Blow Out on Highways?
1 Answers
The following are the reasons why car tires may blow out on highways: 1. Low tire pressure: When tire pressure is too low, the wheel's sinking amount increases, radial deformation increases, friction between the tire surface and the ground intensifies, rolling resistance rises, and the internal stress of the tire body also increases. This leads to a sharp rise in tire body temperature, softening of the tire surface rubber, accelerated aging, and localized delamination and increased wear of the tire surface. Under these conditions, if the car continues to drive at high speeds on the highway, these reactions accelerate, significantly increasing the likelihood of a tire blowout. 2. Overinflated tires: To increase the vehicle's load capacity, some drivers prefer to exceed the standard tire pressure during inflation. Unbeknownst to them, this accelerates tire wear, thereby increasing the possibility of a blowout. Excessive tire pressure increases the tension of the tire body cords, hastening the fatigue process. Especially when driving with overinflated tires while overloaded and speeding, the internal stress on the cords increases further, causing rapid temperature rise in the tire, accelerated rubber aging, and decreased fatigue strength. This results in severe wear in the center of the tire surface, sawtooth-like wear on the side tread patterns, and cord layer breakage, leading to tire blowouts.
