Nonlinear Johnson Cook Material Constitutive Model For High Speed Impact Usin…

This thesis (or dissertation) focuses on the application and modification of the Johnson-Cook (J-C) constitutive material model for analyzing materials subjected to high-speed impact and large deformations, typically encountered in fields like ballistics or armor protection. The J-C model is a widely used semi-empirical model that describes the material's flow stress as a function of plastic st…