The application of asymmetric composite materials in such adaptive structures as fan blades, fixed-wing aircrafts, and tilting rotors can lead to more deformation modes and good mechanical properties still remaining hygrothermally stable. But the influence of the extension-bending coupling effect on their mechanical properties is unknown. The wing skin is taken as an example to obtain a variety of hygro-thermally stable laminates with the extension-bending coupling effect by the optimal design method. It is compared with laminates with no extension-bending coupling effect by theoretical calculations and simulation verifications. The merits and demerits of the extension-bending coupling effect on other coupling effects, yield strength and buckling load of asymmetric composite structures have been clarified.

中文翻译：

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非对称复合结构引入伸弯耦合的影响

非对称复合材料在风扇叶片、固定翼飞机、倾转旋翼等自适应结构中的应用可以产生更多的变形模式和良好的机械性能，但仍保持湿热稳定。但拉伸-弯曲耦合效应对其力学性能的影响尚不清楚。以机翼蒙皮为例，通过优化设计方法得到具有伸弯耦合效应的多种湿热稳定层合板。通过理论计算和仿真验证，将其与没有拉伸弯曲耦合效应的层压板进行了比较。阐明了拉伸-弯曲耦合效应对非对称复合结构的其他耦合效应、屈服强度和屈曲载荷的优缺点。