Is it possible to bent, snap or crack a car frame like this?

[Jan D]

Is it possible to bent, snap or crack a car frame like this?

I'm kind of feeling very scared at the idea I may have snapped, cracked or bent a Holden Viva's underside by placing a hydraulic trolley jack under the car and aligned it with the rail that was meant for another jack. I then started to raise up the car, when all of a sudden, this really loud pop sound came occurred from either the hydraulic jack being on a stony surface or somewhere along the car.  

 

I already checked the side where it was raised up from and saw no cracks coming from the jack point.  I even removed the rubber undercoating to see if there was a crack  coming from this jack point. 

 

I am genuinely scared that it might kill someone. 

[Aussie_Delivered_R32_GTR]

I very much doubt it.

Imagine what would happen to the car if it got hit at 40kph let alone 80kph if a jack could crack it.

ADR (Australian Design Rules) are one of the strictest in the world.

You have possibly cracked an inner mould or something.

[niZmO_Man]

Pfft, you think that's scary, try jacking up an R32.

On a serious note, if you can't see any damage then it probably was probably something under the jack's wheel.

[PranK]

Well done for checking though. This is the type of thing that would flip me out also.