Giunzioni Incollate Ibride di Lamiere: Analisi Sperimentale e Modellazione Numerica

Nowadays two are the fundamental issues in car body design: weight reduction in order to reduce fuel consumption and consequently pollutant emissions and the ever more stringent safety requirements. To meet these targets, the trend is towards using hybrid structures made by unconventional materials, like aluminium, polymers and composites. The use of these materials brings about some problems, one of them is associated to the joining techniques. Among the different alternative solutions, the most promising is the use of structural adhesives. The aim of this work is to model the behaviour of simplified crash box elements made of different materials and joined together by structural adhesives. The crushing axial compression of these components were investigated both by in static and dynamic loading conditions because the used materials are known to be strain-rate sensitive. Models were developed and verified by comparing numerical and experimental results on these simple components.

PERONI Marco;  SCATTINA Alessandro; 

2011-01-19

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JRC60690