Riassunto analitico
In motorsport, safety has taken on a fundamental role over the last few decades. The safety of drivers and everyone involved in racing has therefore led to numerous technical innovations, with the final aim of decreasing the number of fatalities and reducing accident-related damages.
In this thesis, a CFRP rear impact absorbing structure of a Formula car was analysed with the aim of finding an optimal solution in terms of weight and cost together with Dallara Automobili. For this purpose, the shape of the above mentioned component was first determined with a free-shape optimization, where the objective was to maximise the first natural frequency, a fundamental parameter for analysing the structure's crash behaviour. Subsequently, after defining the geometry, the lay-up has been optimised in order to obtain a structure compliant with the regulations, and alternatives have been evaluated in order to comply with the proof tests imposed by the FIA, which have been simulated with finite element software Hypermesh. Finally, the solutions have been evaluated from a technical and economic aspect and the selected option has been further developed: a detailed CAD model has been created using PTC Creo Parametric, exploiting its Composite Module for generating a 2D plybook.
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