Investigating Sub-surface Microstructure in Fiber Reinforced Polymer Composites via X-Ray Tomography Characterization
Investigating Sub-surface Microstructure in Fiber Reinforced Polymer Composites via X-Ray Tomography Characterization
复制标题
通过 X 射线断层扫描表征研究纤维增强聚合物复合材料的次表面微观结构
DOI：
10.2514/6.2016-0409
复制
发表时间：
2016
期刊：
影响因子：
--
通讯作者：
M. Sangid
中科院分区：
文献类型：
--
作者：
Ronald F. Agyei;B. Sharma;M. Sangid
短纤维增强聚合物复合材料（SFRC）的应用有可能减轻重量，同时保持高的机械性能。与所有其他制造技术一样，使用注射成型工艺制造SFRC可能会在最终部件中产生缺陷和不确定性。在本文中，我们探讨了使用X射线断层扫描加上数字图像处理技术来探测SFRC材料的微观结构。我们采用2D的方法作为元数据提取的主要手段。然后，提取的元数据被用作迭代相关过程的输入，最终导致3D纤维重建。最后，对重构的纤维进行后处理，以测量平均纤维长度和平均纤维取向，已知这些特性严重影响机械性能。
The application of short fiber reinforced polymer composites (SFRC) has the potential to decrease weight, while maintaining high mechanical properties. Like all other manufacturing techniques, the use of injection molding process for manufacturing of SFRC is likely to produce defects and uncertainties in the final part. In this paper, we investigate the use of x-ray tomography coupled with digital image processing techniques to probe the material microstructure of SFRC. We adopt a 2D approach as the primary means of metadata extraction. The extracted metadata is then used as input for an iterative correlation procedure, ultimately resulting in 3D fiber reconstruction. Finally, the reconstructed fibers are post-processed for mean fiber length and mean fiber orientation measurements, properties that have been known to critically affect mechanical properties.