How to make stuff emit from cracks in cell fractured meshes:

1: Do the cell fracture, duplicate the fractured mesh and join it together.

2: remove all non-sharp edges by selecting a non-sharp edge, Shift+G->Sharpness, then X->Edges:

3: Select all, extrude and scale outwards, make sure not to change your selection yet!

4: In a UV editor, enable Selection Sync, and move everything over to the right.

5: Invert selection (Ctrl + I) and make sure the rest is all on the left.

6: Add a shader something like this, if you want to change the center-point of the radial noise use an Empty for the texture coordinate input.

Tada, now you've got some extra emphasis for stylised fracture effects :)