In the present research, glass and basalt fiber-reinforced polypropylene composites’ behaviour in quasi-static and dynamic conditions is studied. Composites were fabricated by vacuum assisted Compression molding method. Composites failure under quasi-static tension and compressive conditions was studied along with its failure behaviour under low-velocity impact and super-sonic shock loading under dynamic conditions. The study results showed that basalt fiber-reinforced polypropylene (Basalt/PP) composite’s tensile and compressive strength is higher than glass fiber-reinforced polypropylene (Glass/PP). The Basalt/PP showed no penetration against low velocity impact (LVI) with negligible deformations till 50 J. However, the Glass/PP perforated at 50 J with various failure patterns occurring at back side. The fiber-matrix interface adhesion plays an important role in super-sonic shock loading by absorbing shock wave energy due to ductile nature of polypropylene and the two composites absorbed energy via matrix and fibers failure, no brittle failure of laminates occurred under shock loading.

中文翻译：

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纤维增强聚丙烯复合材料层压板在准静态和超音速冲击载荷条件下冲击应用的性能分析

在本研究中，研究了玻璃和玄武岩纤维增强聚丙烯复合材料在准静态和动态条件下的行为。采用真空辅助模压成型方法制备复合材料。研究了复合材料在准静态拉伸和压缩条件下的失效，以及动态条件下低速冲击和超音速冲击载荷下的失效行为。研究结果表明，玄武岩纤维增强聚丙烯（Basalt/PP）复合材料的拉伸和压缩强度均高于玻璃纤维增​​强聚丙烯（Glass/PP）。玄武岩/PP 在低速冲击 (LVI) 下没有表现出穿透性，直到 50 J 时变形可以忽略不计。然而，玻璃/PP 在 50 J 时穿孔，背面出现各种失效模式。由于聚丙烯的延展性，纤维-基体界面粘合力通过吸收冲击波能量在超音速冲击载荷中发挥着重要作用，两种复合材料通过基体和纤维破坏吸收能量，层合板在冲击载荷下不会发生脆性破坏。