Damage propagation and dynamic material properties of aluminosilicate glass

Understanding the damage progression in aluminosilicate glass against impact loading is all-important for the design of a transparent structure. The Edge-on impact (EOI) experiments linked to the ultra-high-speed camera on glass plates are completed to visualize and quantify damage propagation. This followed quasi-static compressive and split-tensile, and dynamic compressive experimentation on aluminosilicate samples to examine failure process, strength, and crack initiation. By incorporating the compression and tensile test data, Johnson-Holmquist ceramic (JH-2) model parameters were estimated for aluminosilicate glass. The compression tests simulated for verification of determined JH-2 constants and finally validated by conducting the EOI simulations on glass plates to the spherical and cylindrical-shaped projectile. The simulated results for damage shape, propagation, and spall effect were collated with experiments and JH-2 model for aluminosilicate glass well predicted the impact/damage response. The high-speed visuals, calculated results, and scan electron microscopic imageries confirmed that damage progression is dependent on the impactor shape.