Measurement of fibre waviness in industrial composite components
Measurement of fibre waviness in industrial composite components
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DOI：
10.1016/j.compscitech.2012.09.001
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发表时间：
2012-11-16
影响因子：
9.1
通讯作者：
Scott, A. E.
中科院分区：
文献类型：
--
作者：
Sutcliffe, M. P. F.;Lemanski, S. L.;Scott, A. E.
纤维取向是由树脂传递模塑（RTM）或预浸料/真空固结制成的两个工业CFRP组件的单向层片的抛光部分测量的。Creighton等人[Composites：Part A 2001; 32：221-229]描述的图像分析技术用于确定通常5 × 5 mm截面上的纤维取向。纤维取向角的标准偏差在0.6-1.8度的范围内，对于预浸料组件的面内波纹度最小。波度区域的长度和宽度沿着和横向于纤维的特征在于使用自相关。长度在1.1- 4.4mm的范围内，在预浸料中显著大于在RTM部件中。宽度在0.37-1.30 mm范围内，并且在样品类型中大致相似。研究表明，图像分析方法也可以应用于X射线图像，与抛光预浸料坯样品的结果具有良好的一致性。(C)2012爱思唯尔有限公司保留所有权利。
Fibre orientation is measured from polished sections of the unidirectional plies of two industrial CFRP components made by resin transfer moulding (RTM) or prepreg/vacuum consolidation. The image analysis technique described by Creighton et al. [Composites: Part A 2001; 32: 221-229] is used to determine the fibre orientation over typically 5 x 5 mm sections. The standard deviation in fibre orientation angle is in the range 0.6-1.8 degrees, being smallest for in-plane waviness of the prepreg component. The length and width of the waviness region along and transverse to the fibres is characterised using autocorrelation. The length is in the range 1.1-4.4 mm, being significantly greater in the prepreg than in the RTM component. The width is in the range 0.37-1.30 mm and is broadly similar across the sample types. It is demonstrated that the image analysis method can also be applied to X-ray images, giving good agreement with results from the polished prepreg samples. (C) 2012 Elsevier Ltd. All rights reserved.