To drive new ideas, we occasionally need to modify the theory of Johnson-equations. Cook's As a result, we learn how to use the Abaqus model for Johnson Cook theory as well as how to create subroutines for this model in this training package. There are already two written subroutines. You will learn how to apply Johnson-Cook progressive damage in the second one after learning how to apply Johnson-Cook plasticity and damage initiation in the first.