@ARTICLE{10.21494/ISTE.OP.2019.0433, TITLE={Comparative Study between Plastic Composites and Steel in Structural Parts of Automobile}, AUTHOR={Bouchaïb Radi, Abdelilah Elbazze, }, JOURNAL={Uncertainties and Reliability of Multiphysical Systems}, VOLUME={3}, NUMBER={Issue 1}, YEAR={2020}, URL={https://www.openscience.fr/Comparative-Study-between-Plastic-Composites-and-Steel-in-Structural-Parts-of}, DOI={10.21494/ISTE.OP.2019.0433}, ISSN={2514-569X}, ABSTRACT={The objective of this study is to show that composite materials based on plastic reinforced with mineral fibers (glass or carbon, etc.) used in structural parts of the automobile, assembled with their environment via bolted connections, are able to replace some steel parts. While keeping these materials have industrial and economic advantages; as they permit on the one hand to lighten the automotive structure for less consumption of fuels and on the other hand to lower the cost of manufacture for more competitiveness in the automotive market. The tasks that have been done in this study is to submit these composite parts to the same stresses as steel, by using new concepts so that they adapt to their environment and reply to the criteria of reliability and validation’s car approval. The results of numerical simulations show the ability of these materials to replace steel in structural parts of the automobile and they represent a strategic choice in the automotive industry of the future.}}