Recently crashworthiness trend is the use of thin-walled composite impact attenuators in specific vehicle zones, ensuring kinetic energy absorption. The present paper addresses the composite conical structures design using an analytical approach for predicting energy dissipation in a controlled way. A balance of internal energies involved in the absorption and external force yields the average crush load and the total displacement through a numerical method. Comparison between theory and experiments shows the efficiency of the proposed relatively simple model for predicting energy absorption of axially collapsing composite shells.
Energy absorbed by composite conical structures in axial crushing
BORIA, Simonetta;PETTINARI, SILVIA
2014-01-01
Abstract
Recently crashworthiness trend is the use of thin-walled composite impact attenuators in specific vehicle zones, ensuring kinetic energy absorption. The present paper addresses the composite conical structures design using an analytical approach for predicting energy dissipation in a controlled way. A balance of internal energies involved in the absorption and external force yields the average crush load and the total displacement through a numerical method. Comparison between theory and experiments shows the efficiency of the proposed relatively simple model for predicting energy absorption of axially collapsing composite shells.File in questo prodotto:
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