Nowadays each manufacturers of racing cars must pass specific crash tests controlled by legislation, before seeing their vehicles in the market and in motor racing. In order to ensure the driver’s safety in case of high-speed crashes, special impact structures must be designed to absorb the race car’s kinetic energy and limit the decelerations acting on the human body. This target is achieved thanks to the synergy between the numerical and experimental analysis. Investigated in this work is the best solution, in terms of energy absorption, for a specific frontal impact attenuator in CFRP material with sandwich structure. In particular, given the geometry reported by the manufacturer, it has been necessary to find the right combination of material and lamination varying the stacking sequence and its disposition. Analyses have been conducted by the joining of numerical models, performed using LSDYNA, with experimental tests, through an instrumented drop tower equipment.
Investigation of the most efficient solution for a specific vehicle impact attenuator in CFRP material
BORIA, Simonetta;
2012-01-01
Abstract
Nowadays each manufacturers of racing cars must pass specific crash tests controlled by legislation, before seeing their vehicles in the market and in motor racing. In order to ensure the driver’s safety in case of high-speed crashes, special impact structures must be designed to absorb the race car’s kinetic energy and limit the decelerations acting on the human body. This target is achieved thanks to the synergy between the numerical and experimental analysis. Investigated in this work is the best solution, in terms of energy absorption, for a specific frontal impact attenuator in CFRP material with sandwich structure. In particular, given the geometry reported by the manufacturer, it has been necessary to find the right combination of material and lamination varying the stacking sequence and its disposition. Analyses have been conducted by the joining of numerical models, performed using LSDYNA, with experimental tests, through an instrumented drop tower equipment.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
