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Today, the challenge for a supplier involved in energy absorption consists in proposing modular systems able to adress many different specifications. To achieve this goal, one must take into consideration the whole specification. Two solutions are described : one using hybrid thermoplastic composites beam working in bending, the other using padding systems working in compression on a stiff member between two front rails. The two solutions are compared in terms of performances, costs and weight

According to general knowledge, thermoplastics composites have relatively bad performances in comparison with thermoset composites. Nevertheless, the use of some new materials based of continuous glass fiber reinforced composites allows other perspectives for the application of thermoplastics composites. The continuous fiber reinforced TP composite, with E modulus up to 30000 MPa and tensile strength up to 400 MPa, will help us to reach more critical specifications. These kind of product are unfortunately unable to flow in ribs or every not drapable shape. To achieve this goal it is possible to combine with the high performances composites an other material wich is able to flow.