Energy Absorbed by Composite Conical Structures in Axial Crushing

Advanced Composites Letters

Article

Silvia Pettinari¹  Simonetta Boria¹ 

[1] School of Science and Technology, University of Camerino Madonna delle Carceri, 9, 62032 Camerino, Italy;

关键词: Theoretical Analysis;    Crashworthy Problems;    Energetic Approach;    Composite Materials;   

DOI  :  10.1177/096369351402300102

 received in 2013-10-02, accepted in 2014-01-31,  发布年份 2014

来源: Sage Journals

【 摘 要 】

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.

【 授权许可】

Unknown   
© 2014 SAGE Publications Ltd

【 图 表 】

Figure 1

Figure 1