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Window glass breakage in a building fire could change the oxygen supply because of the entrance of fresh air. To investigate the break behavior of window glass under various rates of temperature rise, a finite element method was employed to solve the linear dynamic response equilibrium of the system. The Coulomb-Mohr criterion and SIFs based mixed-mode criterion were employed to predict the crack initiation and growth, respectively. A total of 12 rates of temperature rise were designed from 150K/s to 0.75K/s for a centre- heated and edges-shaded glass pane. The maximum thermal stresses are located at the shaded part between the hot and cool glass layer, which is where the cracking is initiated. Under a rapid rate of temperature rise, a smaller temperature rise could result in a bigger dynamic stress which is then followed by crack initiation. Under a slower rate of temperature rise, the dynamic effect becomes weaker and the thermal stress can be evaluated using the static method

Thermal Shock Effect on the Glass Thermal Stress Response and Crack Propagation