|About this Abstract
||Materials Science & Technology 2019
||Ceramics and Glasses Simulations and Machine Learning
||Peridynamics Modeling of Impact-induced Crack Patterns in Glass
||N. M. Anoop Krishnan, Jonathan Berjikian, Mathieu Bauchy, Jared Rivera
|On-Site Speaker (Planned)
||N. M. Anoop Krishnan
Brittle materials, such as glasses, are constantly exposed to high velocity impact. This leads to the formation of cracks and failure of the material. Understanding the role of geometric and material properties on the formation of crack patterns is essential for the design of novel impact resilient materials. Here, using peridynamics, we model the damage in a brittle glass plate due to projectile impact. Simulations are carried out using copper and glass bullets with velocities varying from 5 m/s to 100 m/s. We investigate the role of geometric properties such as plate thickness and radius, and material properties such as elastic modulus and fracture energy on the overall damage. We observe an interesting power law dependence of the overall damage with respect to the fracture energy. The origin of this power-law dependence is found to be associated with the velocity of crack propagation and crack-branching behavior in the material.