What Causes a Car Tire to Burst on the Highway?

[VonJune]

Here are the specific reasons for tire bursts 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 rises, rolling resistance increases, and the internal stress of the tire body also rises. This causes the tire body temperature to rise sharply, the tire surface rubber to soften, and the aging speed to accelerate, leading to local delamination of the tire body and increased wear on the tire surface. Under these conditions, if the car continues to drive at high speeds on the highway, the above reactions of the tire will accelerate, significantly increasing the likelihood of a tire burst. 2. Over-inflation of the tire: When tire pressure is too high, the tension on the tire body cords increases, accelerating the fatigue process of the cords. Especially when driving with over-inflation, overload, and overspeed, the internal stress on the cords increases further, the tire temperature rises rapidly, rubber aging speeds up, and fatigue strength decreases. This results in severe wear on the central part of the tire surface, sawtooth-like wear on the side tread patterns, and cord layer breakage, leading to a tire burst. 3. Incorrect tire installation: Wheel imbalance. Due to uneven mass distribution across different parts of the wheel, when the wheel rotates, a huge impact force is generated in the wheel's rotation plane under centrifugal force, causing the wheel to bounce and sway. This accelerates tire wear and subjects the cord layers to periodic impact loads, reducing the cord's fatigue resistance. Particularly at speeds above 100 km/h, the wear caused by wheel imbalance is extremely severe, ultimately leading to a tire burst.