A review of the design of medium and large open reinforced structures in composite fuselages

Abstract

Composite materials are widely used in the design and manufacture of modern civil aircraft fuselage structures. Some large airliners already have full-size composite fuselages, which reduced the weight of the fuselage structure, but the problem of reinforcing the opening of the composite fuselage is also very important. In this paper, the design of medium and large scale open reinforcement structures in composite fuselages is focused. The force characteristics of passenger doors, cargo doors, landing gear hatch openings, and the reinforcement structure form are elaborated, and based on the current research status at home and abroad, the future development of composite fuselage opening reinforcement design is prospected.

Study on influencing factors and optimization of carbon fiber wear resistance test

“…Due to the fact that carbon fiber is a brittle material, during production, processing, and application, mechanical friction can easily lead to the formation of fuzz or even clumps due to the fracture of some fibers. This results in poor fiber surface appearance and quality consistency, and ultimately affect the conversion rate and applying performance of carbon fiber [1,2]. In recent years, significant progress has been made in the development of Chinese carbon fibers, which have reached or even surpassed imported carbon fibers in terms of tensile properties.…”