The shear properties of woven carbon fabric
The shear properties of woven carbon fabric
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DOI：
10.1016/s0263-8223(00)00051-9
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发表时间：
1999-12-01
影响因子：
6.3
通讯作者：
Paton, R
中科院分区：
文献类型：
--
作者：
Nguyen, M;Herszberg, I;Paton, R
本文对碳纤维平纹织物和斜纹布的剪切性能进行了实验和理论研究。这些材料的剪切特性通过使用由机械试验机加载的画框剪切试验台来确定。剪切力/角度曲线的各种测试材料进行的实验。在前人研究的基础上，提出了一种将织物纱线理想化为梁单元的剪切模型。该模型利用织物的几何参数和材料参数，预测了织物的初始滑移区域，以及更主要的弹性变形范围。将实验结果与理论计算结果进行了对比，验证了模型的正确性.分析结果的讨论也给出了，特别关注的准确性，局限性和优势，这样一个模型提供的。结果表明，滑移模型给出了适度准确的预测，而弹性模量模型表现出很好的相关性与实验数据。(C)2000由爱思唯尔科学有限公司出版。版权所有。
This paper presents experimental and theoretical studies of the shearing properties of carbon plain weave fabrics and prepregs. The shearing characteristics of these materials are determined by the use of a picture frame shear rig which is loaded by a mechanical test machine. The shear force/angle curves are presented for the experiments conducted with the various test materials. A proposed shear model based on Previous research which idealizes the fabric yarns as beam elements is presented. Using fabric geometric and material parameters, the model predicts the initial slip region of the fabric, as well as the more dominant elastic deformation range. Comparisons of the experimental and theoretical results were conducted to validate the model. A discussion of the findings from the analysis is also given, with particular focus relating to the accuracy, limitations and advantages offered by such a model. Results indicated that the slip model gives modestly accurate predictions, whilst the elastic modulus model showed very good correlation with experimental data. (C) 2000 Published by Elsevier Science Ltd. All rights reserved.