hello everyone

i am very interested on modeling and simulation of rock blasting( bench blasting) particularly, analysis of crack/fracture growth during blasting. i use this ls-dyna software for the last three years but since its a FEM i couldn't set or generate the element fail which shows the crack development. now i want to include material erosion( i think this may show how the element fail during detonation---called crack growth). i see different articles use LS-DYNA Software that simulate and shows the crack growth during blasting.

for example;

Article Numerical investigation of blast-induced rock fragmentation

please help me !!