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Fem-multibody Approach for Car Body Critical Areas Identification under Random Fatigue Loads
paris98/f98t669

Authors

Paolo Cavallo - Fiat Research Centre
Michele Rabito Crescimanno - Fiat Research Centre

Abstract

Time to Market and cost reduction objectives are strongly pushing car manufacturers towards a preliminary virtual design release for almost all the functional performances of vehicles, leaving to tests on prototypes just the final design release. Within this context, a numerical methodology has been developed to check the structural behaviour of a car body-in-white ( biw) during random fatigue tests, focusing on the localisation of critical areas. The main advantages offered by the methodology are related to both the opportunity of checking early-conceived changes in design and the cost and time savings attainable during experimental tests by the a-priori knowledge of the critical areas.

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