The brittle nature of thermoset-based composite laminates restricts the application of these materials in various industries. One of the most effective methods for resolving this problem is interleaving the laminate by nanofibrous mats. Applying nanofibers between all layers is very costly and time-consuming. Therefore, the efficiency of using nanofibers in half of the layers for various interleaf sequences is investigated in this study. On the other hand, since the damage pattern is different in thick and thin laminates under impact, its effect is also considered. Cohesive parameters are required for impact modeling in ABAQUS, so they were obtained by mode-I and mode-II fracture tests and numerical studies. The results showed that the best position for interleaving the nanofibers is mid-layers and top layers (near impact point) in thin (flexible) and thick (stiff) laminates, respectively. If it is not possible to predict the damage penetration through the thickness, putting nanofibers in the top section of the laminate is suggested.

中文翻译：

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在由纳米纤维交错的柔性和刚性复合材料层压板中寻找最佳顺序

热固性复合层压板的脆性限制了这些材料在各个行业中的应用。解决这个问题的最有效方法之一是用纳米纤维垫交错层压板。在所有层之间应用纳米纤维非常昂贵且耗时。因此，本研究调查了在不同层间序列的一半层中使用纳米纤维的效率。另一方面，由于厚板和薄板在冲击下的损坏模式不同，因此也考虑了其影响。在 ABAQUS 中进行冲击建模需要内聚参数，因此它们是通过模式 I 和模式 II 断裂试验和数值研究获得的。结果表明，交织纳米纤维的最佳位置分别是薄（柔性）和厚（硬）层压板的中间层和顶层（接近冲击点）。如果无法预测整个厚度的损伤穿透，建议将纳米纤维放在层压板的顶部。