Houdini Problems

The stage I am at now is making a simulation for the front of the cab to break apart when the missile first hits the ground in front of it. I have made a basic RBD simulation in Houdini to imitate how the front of the truck would break apart after impact. I am now having a problem exporting the geometry from Houdini into Maya as I can only export as FBX and only one peice of geometry at a time.

Explosion Render

Here is my fully rendered explosion simulation. I managed to optomise the scene to get the explosion to render 8 frames in an hour which was a huge improvement from 1 frame ever 5 hours.