Which components of a semi-monocoque fuselage help to prevent bending?

In a semi-monocoque fuselage design, longerons and stringers are crucial in providing structural integrity and preventing bending. Longerons run lengthwise along the fuselage and carry the majority of the bending loads. They help maintain the shape of the fuselage and provide strength for the overall structure. Stringers, which run between the longerons, serve to reinforce the skin of the fuselage and help distribute loads more evenly.

Together, longerons and stringers create a framework that enhances resistance to bending moments, especially during flight when forces are applied to the airframe. This is essential for maintaining the aerodynamic shape and structural stability of the aircraft.

While other components mentioned, such as rivets, frames, and skin, play important roles in the overall structure, they don't specifically address bending in the same way that the combination of longerons and stringers does. Rivets connect various parts, frames provide cross-sectional strength, and the skin helps with aerodynamic efficiency, but they do not primarily resist bending loads. Splices and brackets are more about connecting or supporting components rather than directly preventing bending in the fuselage.