Preformed structural reinforcements have shown good performance in crash tests, where the great advantage is their weight. These reinforcements are designed with the aim of increasing the rigidity of regions with large deformations, thus stabilising sections of the vehicle that work as load path during impact. The objective of this work is to show the application of structural reinforcements made of polymeric material PA66 in the field of vehicle safety, through finite element simulations. Simulations of frontal impact at 50 km/h and in ODB (offset deformable barrier) at 57 km/h configurations (standards such as ECE R-94 and ECE R-12) were performed in the software LS-DYNA® and MADYMO®. The simulations showed that the use of polymeric reinforcements leads to a 70% reduction in A-pillar intrusion, a 65% reduction in the displacement of the steering column and a 59% reduction in the deformation in the region of the occupant legs and feet. The level of occupant injuries was analysed by MADYMO® software, and a reduction of 23.5% in the chest compression and 80% in the tibia compression were verified. According to the standard, such conditions lead to an improvement in the occupant safety in a vehicle collision event.


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    Title :

    Performance of polymeric reinforcements in vehicle structures submitted to frontal impact


    Contributors:

    Published in:

    Publication date :

    2012


    Size :

    18 Seiten




    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English




    Performance of polymeric reinforcements in vehicle structures submitted to frontal impact

    Matsumoto, André Takashi / Driemeier, Larissa / Alves, Marcílio | Taylor & Francis Verlag | 2012



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