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A bendable titanium alloy suspension system inspired by the hard shells and flexible legs of ironclad beetles could hold the key to protecting future military vehicles from explosive impacts.

BAE is building a military tank that can withstand explosions by bouncing back into shape after impact, so that the vehicle can continue its mission.

The firm is using a bendable titanium alloy suspension system, made from the same type of material used in flexible glasses, which enables the vehicle’s suspension to return to its normal form after impact, according to the company’s statement.

It is evaluated that the new system could be made available in the next decade. Initial tests of a prototype have already succeeded.

According to, currently, the hulls of combat vehicles and their passengers are protected from blasts such as mines or IEDs, but key operational parts such as the vehicle’s suspension can still be damaged, meaning they must be rescued by other military units.

Marcus Potter, Head of Mobility at BAE Systems Land (UK) said, “This use of memory metals could prove a real game-changer for combat vehicles taking part in operations.”

Being able to adapt to changing situations is hugely important to maintaining effectiveness, and this application of bendable titanium could give armed forces the required flexibility and survivability to complete tasks in challenging areas, he added.

According to BAE Systems engineers, this is the first time the metal alloy has been used to build an entire suspension system. Using memory metal also means the spring can be removed entirely from the suspension strengthening and simplifying the system further.

A prototype of the suspension system has already been constructed and tested by a team of experts and apprentices at BAE Systems as part of their response to a competition placed by the Government’s Defence, Science and Technology Laboratory for an unmanned Highly Robust Ground Platform.

The small-scale prototype underwent five increasingly powerful explosive tests, showing significant resilience against the blasts as a result of its highly robust construction.

The company’s engineers are investigating adapting memory metal suspension for full-size combat vehicles.