The paper presents a study on the ballistic performance of 3D woven wadded through-the-thickness angle-interlock fabrics (TTAI) fabric reinforced composites. Their energy absorption and damage morphology are examined experimentally through perforated ballistic test and X-CT (X-ray Computed Tomography). The results show that the wadded TTAI exhibits a 3.3% higher energy absorption and a 4.6% improved efficiency in energy absorption when compared to a plain weave fabric reinforced composite panel at an equivalent areal density. A 65.3% reduced delamination damage volume and a highly fibrillated failure morphology at the impact location are also noticed on the wadded TTAI reinforced composite, which implies a better utilization of the fiber strength by tensile fracture in absorbing the impact energy. The findings will instruct the future design of lightweight structures for ballistic protective uses, especially those applications with doubly curved shapes.

本文介绍了 3D 编织填充全厚度角互锁织物 (TTAI) 织物增强复合材料的弹道性能研究。它们的能量吸收和损伤形态通过穿孔弹道测试和 X-CT（X 射线计算机断层扫描）进行实验检查。结果表明，与同等面密度的平纹织物增强复合板相比，填充的 TTAI 表现出高 3.3% 的能量吸收和 4.6% 的能量吸收效率。在填充的 TTAI 增强复合材料上，还注意到在冲击位置减少了 65.3% 的分层损伤体积和高度原纤维化的破坏形态，这意味着在吸收冲击能量时通过拉伸断裂更好地利用了纤维强度。