Can a Car's Windshield Crack on Its Own?

[RileyLynn]

No. Related introduction: 1. Definition: The car windshield is the largest piece of glass on a vehicle, serving to shield against wind and rain, as well as protect occupants from flying stones, gravel, and other debris. 2. Causes of spontaneous cracking: Spontaneous cracking of car windshields usually occurs at the edges, primarily due to the internal tensile stress and surface compressive stress generated during the heating and cooling processes of laminated glass manufacturing. These forces remain stable when balanced, otherwise spontaneous cracking may occur. 3. Safety: While spontaneous cracking of windshields is possible, most modern windshields are made of laminated glass with multiple layers of polymer interlayers between glass panes, significantly enhancing their resistance to breakage, so there's no need for excessive concern.