Per ICAO Pans-Ops Doc 8168 there is no such thing as acceleration during G/A, the gradient profile expects you to climb all the way to MisAp altitude.
Hopefully the aircraft will actually be climbing above the net profile, and there is a minimum gradient they need to achieve too. However in case where
- you are the critical limiting obstacle
- or you live at the end of TODA
Expect a lot of rattle and shake. You will be quite used to it somehow, as the quad engine airplanes (soon to be extinct tho) will be buzzing by even with all operative.
N. B. Fire is not your greatest concern. That is something which happens outside the casing, inside the nacelle. The core would still be thrusting rather well.