To meet the aviation and aerospace requirements for detachability and load-carrying capacity, a novel connecting structure — a carbon-fiber-filament-wound composite tube with grooved metal inserts has been developed. The tensile behavior of the structure was investigated experimentally and by the finite-element method. The finite-element method was used to simulate the damage process. The failure load of the structure was found to be 37% higher than that of an ordinary bonded tube without grooved metal inserts. A stress analysis showed that the structural failure was not caused by the failure of adhesive, but was determined by the tensile strength of the ±30° wound layers and the shear strength of interlayer

为满足航空航天对可拆卸性和承载能力的要求，开发了一种新型连接结构——带凹槽金属嵌件的碳纤维缠绕复合管。通过实验和有限元方法研究了结构的拉伸行为。采用有限元法模拟损伤过程。发现该结构的破坏载荷比没有带槽金属嵌件的普通粘合管高 37%。应力分析表明，结构破坏不是由粘合剂破坏引起的，而是由±30°缠绕层的拉伸强度和夹层的剪切强度决定的