Abstract:
The present invention relates to a tank (100, 12, 11) of liquid (2) designed to withstand the overpressures caused by projectile impact and placed within a structure (4), said tank comprising an overpressure management device, said device comprising a layer (3) of polyethylene-based hyperelastic foam. The object of the invention is to obtain simple, durable and passive expansion both on existing tanks and on new tanks.