In this study, composite overwrapped pressure vessels (COPVs) for high-pressure hydrogen storage were designed, modeled by finite element (FE) method, manufactured by filament winding technique and tested for burst pressure. Aluminum 6061-T6 was selected as a metallic liner material. Epoxy impregnated carbon filaments were overwrapped over the liner with a winding angle of ±14° to obtain fully overwrapped composite reinforced vessels with non-identical front and back dome layers. The COPVs were loaded with increasing internal pressure up to the burst pressure level. During loading, deformation of the vessels was measured locally with strain gauges. The mechanical performances of COPVs designed with various number of helical, hoop and doily layers were investigated by both experimental and numerical methods. In numerical method, FE analysis containing a simple progressive damage model available in ANSYS software package for the composite section was performed. The results revealed that the FE model provides a good correlation as compared to experimental strain results for the developed COPVs. The burst pressure test results showed that integration of doily layers to the filament winding process resulted with an improvement of the COPVs performance.

在这项研究中，设计了用于高压储氢的复合外包裹压力容器（COPV），通过有限元（FE）方法建模，通过纤维缠绕技术制造并测试了爆破压力。选择铝 6061-T6 作为金属衬里材料。环氧树脂浸渍的碳丝以±14°的缠绕角包裹在衬里上，以获得具有不同前后圆顶层的完全包裹的复合增强容器。COPV 装载有不断增加的内部压力，直至达到爆破压力水平。在加载过程中，容器的变形是用应变计局部测量的。通过实验和数值方法研究了设计有不同数量的螺旋、箍和桌巾层的 COPV 的机械性能。在数值方法中，有限元分析包含一个简单的渐进式损伤模型，该模型在 ANSYS 软件包中可用，用于复合截面。结果表明，与开发的 COPV 的实验应变结果相比，有限元模型提供了良好的相关性。爆破压力测试结果表明，将桌巾层集成到纤维缠绕过程中可以提高 COPV 的性能。