Why Do Car Tires Burst?

[LenaRose]

The reasons for tire bursts are as follows: 1. Low tire pressure: Some drivers, fearing a 'tire burst,' often fail to inflate the tires to the standard pressure, which is a serious mistake. Low tire pressure increases the wheel's sinking amount and radial deformation, raises friction between the tire surface and the ground, increases rolling resistance, and elevates the internal stress of the tire body. This leads to a sharp rise in tire body temperature, softening of the tread rubber, accelerated aging, and causes local delamination of the tire body and increased tread wear. 2. Over-inflation of tires: To enhance the vehicle's load capacity, some drivers prefer to exceed the standard tire pressure during inflation, unknowingly accelerating tire wear and increasing the likelihood of a tire burst. Excessive tire pressure increases the tension of the tire body cords, speeding up the fatigue process of the cords. Especially when over-inflated and driving overloaded or at high speeds, it further increases the internal stress of the cords, rapidly raises tire temperature, accelerates rubber aging, and reduces fatigue strength. This results in severe wear in the center of the tread, sawtooth-like wear on the sidewall patterns, and cord breakage, leading to tire bursts.