This work aims at assessing the effect of the stacking sequence of hybrid laminates on the 3D void formation through a statistical approach. For that purpose, a three-dimensional microstructure is created from multiple two-dimensional microscopy images. Weibull approach shows a poorer fit for carbon fiber composite, while the presence of glass fiber creates homogenization in porosity variation, also treated by ANOVA. The present methodology enables the prediction of void volume fraction in different carbon/glass preform ratios and stacking sequence along the laminate length and through-thickness. The low glass fiber ratio decreases the void content, homogenized porosity distribution along laminate length, and thickness, mainly for glass fiber preforms located in the middle of the laminate. These results confirm that the uniformity of void content throughout the composite can be improved by altering the stacking sequence and ratio of glass to carbon fiber preforms. This methodology can be extended to any composite manufacturing process

这项工作旨在通过统计方法评估混合层压板堆叠顺序对3D空隙形成的影响。为此，从多个二维显微图像创建三维显微结构。威布尔方法显示碳纤维复合材料的贴合性较差，而玻璃纤维的存在会导致孔隙度变化产生均质性，这也通过ANOVA处理。本方法学使得能够预测沿着层压体长度和贯穿厚度的不同碳/玻璃预成型坯比率和堆叠顺序中的空隙体积分数。低的玻璃纤维比率降低了空隙含量，沿层压板长度的均匀孔隙率分布和厚度，主要用于位于层压板中间的玻璃纤维预成型坯。这些结果证实，通过改变玻璃与碳纤维预成型件的堆叠顺序和比例，可以改善整个复合材料中空隙含量的均匀性。这种方法可以扩展到任何复合材料制造工艺