BrainFracture

I need help of physics in order to calculate/predict the fracture propagation of rocks when the force is applied to it. I know there are a lot of variables, a lot of factors influencing (velocity, properties of specific stone, the properties of material that the force is applied with, angle of the strike...). For me it really hard, because I am a newbie, can someone show me the way/ where should I start looking for solving my puzzle (articles/books). Thank you very much.