Abstract
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.
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