纤维缠绕复合材料气瓶研究进展

纤维缠绕复合材料气瓶具有高比强度和比模量、抗疲劳、抗腐蚀等优点,已经成为研究的焦点.文中分析了纤维缠绕复合材料气瓶在国内外的研究进展,并进行了归纳总结,主要内容包括:纤维缠绕复合材料气瓶的国内外标准、制造过程中应考虑的主要因素、失效准则、失效模式以及优化设计.通过对比发现,Tsai-Wu失效准则预测的失效压力与实验值最接近.提出了一些预防复合材料气瓶失效的措施,对气瓶的安全使用有一定的借鉴作用.最后指出了未来研究的重点.

Progress in filament-wound composite gas cylinders

Filament-wound composite gas cylinders have become a research focus because they exhibit many advantages such as high strength-density and stiffness-density ratios,and excellent resistance to fatigue and corrosion.This paper summarizes the progress in filament-wound composite gas cylinders at home and abroad.The domestic and abroad standards,the main factors that should be considered in manufacturing process,failure criteria,failure mode and optimal design of filament-wound composite gas cylinders are discussed here.By comparison,it was found that the Tsai-Wu failure criterion leads to most accurate failure pressure among all failure criteria.Some measures are put forward to prevent the failure of composite gas cylinders and it is of great significance to improving composite gas cylinders safely.The focus of future research is summarized finally.