Abstract

The changes in energy-absorption and deformation characteristics of thin-walled E-glass fiber reinforced composite conical frusta upon introduction cutouts were studied through quasi-static axial compression loading. The 15^°, 18^° and 21^° semi-apical angled conical frusta with a circular, square, and elliptical cutout were axially compressed, and its crush-force-efficiency, energy-absorption, and specific-energy-absorption (SEA) characteristics were analyzed. Further, the ABAQUS® finite element software was used to simulate the crush behavior of perfect and imperfect conical frusta, and the corresponding results were compared with the experimental results, and the results are reported in this article.

摘要

通过准静态轴向压缩加载研究引入切口后薄壁无碱玻璃纤维增​​强复合材料锥台的吸能和变形特性变化。轴向压缩具有圆形、方形和椭圆形切口的 15 ^°、18 ^°和 21 ^°半顶角锥台，其压碎力效率、能量吸收和比能量吸收 (SEA) 特性进行了分析。进一步地，利用ABAQUS®有限元软件模拟了完美和不完美截头锥体的压溃行为，并将相应结果与实验结果进行了对比，本文对结果进行了报道。