How is aeroelastic tailoring used in wing design?

Aeroelastic tailoring exploits material anisotropy to control structural deformation under load. Objectives: Load alleviation - Wing bends and twists to reduce loads in gusts/maneuvers, enables lighter structure; Flutter improvement - Tailor stiffness coupling for better flutter margins; Gust response - Reduce accelerations for passenger comfort. Implementation: Composite layup - Orient plies to create bend-twist coupling; Forward sweep benefits - Coupling prevents divergence, enables forward sweep (X-29). Analysis: Coupled aero-structural models, Nonlinear response for large deflections, Optimization of ply angles and thicknesses. Trade-offs: Performance benefit vs. manufacturing complexity, Certification of tailored response, and Handling qualities effects. Applications: Boeing 787 wing has significant aeroelastic tailoring, Business jets with high aspect ratio wings, and Future high-aspect-ratio transports. Design validation: Wind tunnel with flexible models, Ground vibration testing, Flight flutter testing. Aeroelastic tailoring enables designs not possible with conventional materials.