By certification rules, every plane has to endure touching down at descent rate of 3 m/s at MLW and 1,8 m/s at MTOW.
Planes do not have very much more spare strength beyond that. When a Concorde touched down in Dakar at 4,2 m/s, the tail bumper wheel was crushed and the plane suffered tailstrike. The frame was repaired and flew again; but it was always heavier than the other Concordes because of the extra weight of repairs, and it was scrapped alone of all Concordes.