NASA Glenn’s Shape Memory Allow Tires: Part 2

NASA Glenn’s Shape Memory Allow Tires: Part 2


>>This particular tire, unlike
a conventional spring tire made of spring steel, is
different because the material that it’s made from is an
alloy-based stoichiometric nickel titanium. And that particular — this particular material
doesn’t deform like conventional materials
where in those materials, when we put stress on them, we basically are
stretching the bonds between the atomic structures. This material has a unique
characteristic that allows it to do an atomic rearrangement
to accommodate deformation, and that lets us do about 30
times the deformation we could do in a conventional material without having permanent
deformation happen. We could actually deform this
all the way down to the axle and have it return to shape, which we could never
even contemplate in a conventional metal system.

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