Will a tire burst when driving on the highway at 70 degrees Celsius?
1 Answers
Tire temperature of 70 degrees Celsius while driving on the highway may lead to a tire burst. Below are the specific reasons for tire bursts: 1. Low tire pressure: Low tire pressure increases the wheel's sinking amount and radial deformation, leading to increased friction between the tire surface and the ground, higher rolling resistance, and a rise in the tire's internal stress. This causes a sharp increase in tire temperature, softening the tire rubber and accelerating aging, resulting in localized delamination and increased tread wear. Under these conditions, if the vehicle continues to drive at high speeds on the highway, these reactions accelerate, significantly increasing the likelihood of a tire burst. 2. Over-inflation of the tire: Excessive tire pressure increases the tension in the tire's cord body, hastening the fatigue process of the cords. Particularly when over-inflated, overloaded, and driven at high speeds, the internal stress on the cords increases, rapidly raising the tire temperature and accelerating rubber aging, while reducing fatigue strength. This leads to severe central tread wear, sawtooth-shaped wear on the sidewall patterns, and cord layer breakage, ultimately causing a tire burst. 3. Incorrect tire installation: Wheel imbalance. Due to uneven mass distribution around the wheel, when the wheel rotates, centrifugal force generates significant impact forces in the wheel's rotational plane, 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. Especially at speeds above 100 km/h, the wear caused by wheel imbalance is extremely severe, eventually leading to a tire burst.