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Aluminum foams properties, as energy absorbing materials, were experimentally studied. Having as objective the improvement of the vehicle crashworthiness, two different applications were considered. as a filler material for hollow components of the body frame; in this case the objective is to reinforce weak areas of the frame for a better control of the collapse during the crash; as a material to be employed for the manufacturing of energy absorbing structures for the crashworthiness improvement at low speed impact. Some prototypes were manufactured and tested in order to evaluate the potential benefits for both the applications. Good results obtained in both cases pointed out Al-foam as promising material for increasing the passive safety of the vehicle.