Identification and Quantification of 3D Fiber Clusters in Fiber-Reinforced Composite Materials
Identification and Quantification of 3D Fiber Clusters in Fiber-Reinforced Composite Materials
复制标题
纤维增强复合材料中 3D 纤维簇的识别和定量
DOI：
10.1007/s11837-021-04703-0
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发表时间：
2021
期刊：
影响因子：
2.6
通讯作者：
Stapleton, Scott
中科院分区：
文献类型：
--
作者：
Schey, Mathew J.;Beke, Tibor;Appel, Lars;Zabler, Simon;Shah, Sagar;Hu, Jie;Liu, Fuqiang;Maiaru, Marianna;Stapleton, Scott
纤维增强复合材料的微尺度计算机断层扫描显示，纤维通常并不严格相互平行，而是表现出不同程度的错位和缠结。这种缠结的一个特征是纤维作为簇保持在一起的程度。在这项研究中，建立了一种识别和分离纤维簇的方法，并对两种不同复合材料微观结构的扫描进行了分析。为了识别簇，对第一个横截面的纤维中心点进行三角测量，并利用三角形周长和面积沿纤维方向的变化来识别保持在一起的纤维三元组。过滤过程消除了不属于较大簇的纤维三元组。计算并比较了团簇的几何特性，如团簇方向、回转半径、团簇密度和体积分数。这些指标揭示了两个样本之间的根本差异，表明集群起源于制造业。
Microscale computed tomography scans of fiber-reinforced composites reveal that fibers are most often not strictly parallel to each other but exhibit varying degrees of misalignment and entanglement. One characteristic of this entanglement is the degree to which fibers stay together as clusters. In this study, a method for identifying and isolating fiber clusters was established, and scans of two different composite microstructures were analyzed. To identify clusters, fiber center points of the first cross-section were triangulated, and the variation of the perimeter and area of triangles along the fiber direction was used to identify fiber triads which stay together. A filtering process eliminated fiber triads not part of a larger cluster. Geometric properties of the clusters such as cluster orientation, radius of gyration, cluster density, and volume fraction were calculated and compared. The metrics revealed fundamental differences between the two samples, suggesting that clusters have origins in manufacturing.
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DOI：
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发表时间：
2011-01-01
影响因子：
7.2
作者：
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通讯作者：
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影响因子：
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