The use of a crash absorber in a vehicle is to absorb energy. The homologation procedure of vehicles makes use of many crash tests, which are extremely expensive for car manufacturers. This discussion aims to define a methodology for crash absorber design in automotive applications. The objective is to understand the effect of geometrical parameters starting from the theory of circular and square sections. A new approach for square and rectangular sections is then created. It has therefore been possible to define a preliminary concept characterized by the main geometrical parameters such as thickness, length of the two sides and fillet radius of the section and axial length. A finite element analysis was then performed to validate this. Furthermore, a DoE analysis (Design of Experiments) was performed, explaining the influence of complex geometrical parameters such as inner plate reinforcement and indentations in order to trigger the folding mechanism.

Parametric study of an automotive crash absorber: From analytical to FE analysis / Lo Presti, I.; Vezzali, Matteo; Di Pietro, F.; Baldini, Andrea. - (2016), pp. 557-562. (Intervento presentato al convegno 6th International Conference on Structural Engineering, Mechanics and Computation, SEMC 2016 tenutosi a zaf nel 2016) [10.1201/9781315641645-92].

Parametric study of an automotive crash absorber: From analytical to FE analysis

VEZZALI, MATTEO;BALDINI, Andrea
2016

Abstract

The use of a crash absorber in a vehicle is to absorb energy. The homologation procedure of vehicles makes use of many crash tests, which are extremely expensive for car manufacturers. This discussion aims to define a methodology for crash absorber design in automotive applications. The objective is to understand the effect of geometrical parameters starting from the theory of circular and square sections. A new approach for square and rectangular sections is then created. It has therefore been possible to define a preliminary concept characterized by the main geometrical parameters such as thickness, length of the two sides and fillet radius of the section and axial length. A finite element analysis was then performed to validate this. Furthermore, a DoE analysis (Design of Experiments) was performed, explaining the influence of complex geometrical parameters such as inner plate reinforcement and indentations in order to trigger the folding mechanism.
2016
6th International Conference on Structural Engineering, Mechanics and Computation, SEMC 2016
zaf
2016
557
562
Lo Presti, I.; Vezzali, Matteo; Di Pietro, F.; Baldini, Andrea
Parametric study of an automotive crash absorber: From analytical to FE analysis / Lo Presti, I.; Vezzali, Matteo; Di Pietro, F.; Baldini, Andrea. - (2016), pp. 557-562. (Intervento presentato al convegno 6th International Conference on Structural Engineering, Mechanics and Computation, SEMC 2016 tenutosi a zaf nel 2016) [10.1201/9781315641645-92].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11380/1130186
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