In-plane permeability characterization of engineering textiles based on radial flow experiments: A benchmark exercise
In-plane permeability characterization of engineering textiles based on radial flow experiments: A benchmark exercise
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DOI：
10.1016/j.compositesa.2019.03.006
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发表时间：
2019-06-01
影响因子：
8.7
通讯作者：
Ziegmann, G.
中科院分区：
文献类型：
--
作者：
May, D.;Aktas, A.;Ziegmann, G.
虽然两个国际基准试验在面内渗透率方面取得了良好进展，但现有方法尚未标准化。本文介绍了第三个基准练习的结果，使用面内渗透率测量，基于系统应用径向非饱和注入法。19名参与者使用20个系统，以三种不同的纤维体积含量，使用市售硅油作为浸渍液，对无卷曲织物和机织织物进行了表征。他们遵循了详细的表征程序，并完成了关于其设置和分析方法的问卷调查。排除离群值（20个中的2个），参与者结果之间的平均变异系数（c（v））分别为32%和44%（无卷曲和机织织物），而单个参与者的平均c（v）分别为8%和12%。这表明测量系统之间存在统计学显著差异。除了流体压力/粘度测量、织物变化和数据分析之外，腔变形被确定为主要影响。
Although good progress was made by two international benchmark exercises on in-plane permeability, existing methods have not yet been standardized. This paper presents the results of a third benchmark exercise using in-plane permeability measurement, based on systems applying the radial unsaturated injection method. 19 participants using 20 systems characterized a non-crimp and a woven fabric at three different fiber volume contents, using a commercially available silicone oil as impregnating fluid. They followed a detailed characterization procedure and also completed a questionnaire on their set-up and analysis methods. Excluding outliers (2 of 20), the average coefficient of variation (c(v)) between the participant's results was 32% and 44% (non-crimp and woven fabric), while the average c(v) for individual participants was 8% and 12%, respectively. This indicates statistically significant variations between the measurement systems. Cavity deformation was identified as a major influence, besides fluid pressure/viscosity measurement, textile variations, and data analysis.