A damage accumulating modeling of failure waves in glass under high velocity impact

The failure wave phenomenon was interpreted in glass media under the high v elocity impact with the stress levels below the Hugoniot elastic limit. In view of the plate impact experimental observations a damage-accumulating mo del predominated by the deviatoric stress impulse was proposed while Heavis ide function was adopted in the damage-accumulating model to describe the f ailure delay in the interior of Materials. Features of the failure layer an d propagation mechanism as well as their dynamic characteristics were furth er presented. The reduction in failure wave propagation speed is pointed ou t as the reflected rarefaction waves reflect again from the failure layer b oundary.