Local anisotropy analysis of injection moulded fibre reinforced polymer composites

被引：125

作者：

Bernasconi, A. ^{[2
]}

Cosmi, F. ^{[1
]}

Dreossi, D. ^{[3
]}

机构：

[1] Univ Trieste, Dipartimento Ingn Meccan, I-34127 Trieste, Italy

[2] Politecn Milan, Dipartimento Meccan, I-20133 Milan, Italy

[3] Sincrotrone Trieste, I-34012 Trieste, Italy

来源：

COMPOSITES SCIENCE AND TECHNOLOGY | 2008年 / 68卷 / 12期

关键词：

Injection moulding; Short fibre composites; Tomography; Anisotropy;

D O I：

10.1016/j.compscitech.2008.05.022

中图分类号：

TB33 [复合材料];

学科分类号：

摘要：

The fibre orientation distribution in a material sample extracted from an injection moulded plate, displaying the commonly encountered layered shell-core-shell structure, was analyzed. Starting from a micro-tomography reconstruction of the sample, instead of trying to isolate each single fibre and measuring its geometrical properties, we derived the components of a fabric tensor from the evaluation of a global anisotropy parameter, the mean intercept length MIL. This parameter, commonly employed for the analysis of biological and geological structures, proved to be an efficient tool for the analysis of the structure of short fibre reinforced composites. The local variations of the degree of anisotropy (ratio of the maximum and minimum eigenvalues of the fabric tensor) from the shell to the core layers of the injection moulded plate could be captured and information about the local average fibre orientation angle was also obtained. (C) 2008 Elsevier Ltd. All rights reserved.

引用

页码：2574 / 2581

页数：8

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