Hello everybody.

I have simulated one the accidental test on vehicle and the impact interest the battery pack mount to vehicle.

I create one Rigid impactor with mass and initial velocity.

I check the global behavior with animation and curve ( added mass, energy, velocity R-Impactor...)

The balance energy of the Fe Model.show the curve not physical.

I don't understand and i don't know how to give the physical meaning.

The strain energy is negative ( ALLSE)

The plastic dissipation is less by internal energy ( ALLPD and ALLIE)

The ALLPW and the aLLCW are very high about the ALLIE

can you give to me major information about ALLPW and ALLCW?

regards

massimiliano