复合材料缠绕接头几种受力状态的解析分析

针对复合材料缠绕接头,利用Airy 应力函数,推导出与其相关的缠绕圆筒受内外压力的应力解析表达式,进而对缠绕圆拱形梁受弯矩以及受均匀拉伸载荷、不同材质复合材料多层缠绕圆筒承受内外压力的应力分析方法进行了研究。文中讨论了接头内圆弧处应力集中系数随外/内径比值和环向/径向弹性模量比值的增加情况,并对复合材料缠绕接头的两种增强方法,即施加预应力或混杂材质缠绕进行了探讨

Analysis of Winding Composite Joints at Several Load Conditions

Directing against winding composite joints,the stress analytic expressions of its related winding circle tube are deduced with inner and outer pressures. And then the stress analysis methods are studied for the winding arch beam with bending moment or regular tensile load and the multi lamination winding circle tube in different materials with the inner and the outer pressures. The stress concentrate coefficient at the inside of a joint is discussed which increases followed the ratio of internal to external radius and encircle to diameter direction stiffness. Two methods for strengthening composite winding joints, prestressed or multiply twined joint are also inquired.