复合加强筋的能量吸收

A.O. Bolukbasi, D.H. Laananen
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引用次数: 57

摘要

研究了复合材料加筋在轴压作用下的吸能特性。基于平板试样的挤压试验和对能量吸收过程基本原理的理解,开发了一种半经验分析方法,用于预测复合材料加强筋的能量吸收能力。采用T650-35/F584石墨/环氧平纹织物,采用不同比例的45°和0°层组成的五种不同铺层,制作了平板、角度和沟道样品。试件在轴压下进行了破碎测试,并将测量的持续破碎应力水平与模型预测进行了比较。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Energy absorption in composite stiffeners

The energy absorption behaviour of composite stiffeners subjected to axial compression has been investigated. A semi-empirical analysis methodology has been developed for prediction of the energy absorption capability of composite stiffeners based on crush tests of flat plate specimens and an understanding of the fundamentals of the energy absorption process. Flat plate, angle and channel specimens were fabricated from T650-35/F584 graphite/epoxy plain-weave fabric using five different lay-ups that consisted of varying percentages of 45° and 0° plies. The specimens were crush tested under axial compression, and measured levels of sustained crushing stress were compared with model predictions.

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