Generally, composites are sensitive to transverse impact loading because there is no through-thickness reinforcement for these materials. Specifically, type IV composite pressure vessels and cylinders are more susceptible under impact loading because of the presence of a plastic liner. The main challenges related to the existing composite pressure vessel materials are low toughness, low damage tolerance and high cost. Fiber hybridization is one of the active strategies employed to toughen composites and improve impact damage resistance. Therefore, in this work, the low-velocity impact resistance and induced damage severity of carbon–basalt/epoxy hybrid composites were experimentally studied on different cylinders, under 100 J impact energy. The potential of these new hybrid composites was analyzed for type IV pressure vessels. Composite cylinders with eight cylindrical laminates of different stacking sequences and fiber content ratios were fabricated through the filament-winding technique. Damage characterization was carried out using the scanning electron microscopy technique for both composite cylinders and pressure vessels. The results indicated that basalt/epoxy samples exhibited better impact resistance, energy absorption and lower damage severity than carbon/epoxy samples for both composite cylinders and type IV pressure vessels. Moreover, hybrid composite pressure vessels exhibited better impact performance compared with the pure carbon/epoxy vessel.

中文翻译：

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复合材料气瓶与IV型压力容器冲击效果的比较研究

通常，复合材料对横向冲击载荷敏感，因为这些材料没有增厚膜。具体而言，由于存在塑料衬里，IV型复合压力容器和气瓶在冲击载荷下更易受到影响。与现有的复合压力容器材料有关的主要挑战是低韧性，低破坏耐受性和高成本。纤维杂交是使复合材料增韧并提高抗冲击破坏性的有效策略之一。因此，在这项工作中，在100 J冲击能量下，对不同气瓶上的碳-玄武岩/环氧杂化复合材料的低速冲击强度和诱发的损伤严重性进行了实验研究。分析了这些新型杂化复合材料在IV型压力容器中的潜力。通过长丝缠绕技术制造了具有八个堆叠顺序和纤维含量比不同的八个圆柱形层压材料的复合材料圆柱体。使用扫描电子显微镜技术对复合材料气瓶和压力容器进行损伤鉴定。结果表明，对于复合材料气瓶和IV型压力容器，玄武岩/环氧树脂样品均表现出比碳/环氧树脂样品更好的抗冲击性，能量吸收和更低的破坏严重性。此外，与纯碳/环氧树脂容器相比，混合复合压力容器表现出更好的冲击性能。使用扫描电子显微镜技术对复合材料气瓶和压力容器进行损伤鉴定。结果表明，对于复合钢瓶和IV型压力容器，玄武岩/环氧树脂样品比碳/环氧树脂样品表现出更好的抗冲击性，能量吸收和更低的破坏严重性。此外，与纯碳/环氧树脂容器相比，混合复合压力容器表现出更好的冲击性能。使用扫描电子显微镜技术对复合材料气瓶和压力容器进行损伤鉴定。结果表明，对于复合材料气瓶和IV型压力容器，玄武岩/环氧树脂样品均表现出比碳/环氧树脂样品更好的抗冲击性，能量吸收和更低的破坏严重性。此外，与纯碳/环氧树脂容器相比，混合复合压力容器表现出更好的冲击性能。