Help with break a 3d model

Hi all…
If i create a 3d object and if want that when i hit it, it smash…o have to create the pieces? Or i can skip? i mean what o have to do?

Have you seen destructible meshes? They are a pretty cool way that you can break objects, here is a tutorial that should explain it:

The 1s you do inside of unreal are pretty rubbish though since they only have 1 level of fracturing and no control over the type of material/fracturing method. Get the standalone Nvidia Apex destruction software and do your destruction in there and then import to unreal.