I have been given kind of a bonus question that requires a little thinking and I wanted to ask if I am going in the right direction with my thinking as I am new to Materials Science. Given: Ballistics test in which a high velocity projectile is fired at a block of material. Isotropic. Does not go all the way through. High stacking fault energy. High friction. x=point immediatly outside impact hole on surface y=point at edge of surface furthest away from hole (horrizontally). a) Plot a strain distribution curve from x to y. I think that the strain will be very high near impact an decrease further away, so on a strain-vs-dist graph, I would make it a rounded "L" shape. b) Assume that 100% recrystalization takes place at T1, what would be the distribution of the recrystalization grain size with distance? I think that the grain size would increase as we move further from impact point. c) If 100% recrystalization is controlled by conditions a "y" how will the grain size distribution change? I dont understand what he is looking for here, any advice? d) How can you produce a "uniform" grain size with distance (x--> y)? Decreace temperature to decrease recrystalization time. Any help would be greatly appreciated, thanks.