Abstract

The purpose of this study is to complete a previous quasi-static experimental campaign on the energy absorption performance of composite tubes with the influence of the dynamic effect. Various hybrid composite tubes, involving unidirectional and braided plies with various materials and stacking sequences, were tested both in quasi-static and in dynamic crushing in order to identify their behavior and determine their absorbing capabilities using the Specific Energy Absorption. In dynamic loading, 90°-oriented fibers stabilised by woven plies showed good performances, contrary to static loading, since the energy absorption of the unidirectional laminate oriented at 0° drops by 50% in dynamics.

摘要

本研究的目的是完成先前关于受动态效应影响的复合管能量吸收性能的准静态实验活动。各种混合复合管，包括具有各种材料和堆叠顺序的单向和编织层，在准静态和动态压碎中进行了测试，以识别它们的行为并使用比能量吸收来确定它们的吸收能力。在动态加载中，与静态加载相反，由编织层稳定的 90° 取向纤维显示出良好的性能，因为在 0° 取向的单向层压板的能量吸收在动力学上下降了 50%。