Analysis of the polypropylene mechanical behaviour response: Experiments and numerical modeling

The security requirements in the industrial world incite an ever deeper understanding of the behaviour and the fracture of polymeric materials used as structural parts of the passenger compartment. We are looking at a polypropylene commonly used in this field in order to identify the physical processes responsible for their mechanical properties. The mechanical characterization of the response of the polymer under simple and complex strain relies on a unique method of combining performing numerical analysis techniques. The behaviour of polypropylene with large deformations dissipative involves several processes. Its consequences on the mechanical properties of materials are significant. The analysis of these results to emphasis that the plasticity of the polymer involves addition mechanical properties. Taken together, these observations can lay the groundwork for a thermodynamic modeling of the behaviour law to this class of polymer. The contribution of this approach was demonstrated by experimental and numerical modeling of the polypropylene mechanical behaviour.