General Aviation Composite Repair （通用航空综合修复）.pdf

General Aviation Composite Repair Larry L Mansberger The University of Texas Arlington Department of Mechanical and Aerospace Engineering The repair of composite aircraft structures is similar to that of other advanced composite repair techniques. These principles will be covered briefly with emphasis and examples on applications in light General Aviation composite aircraft. This type of aircraft structure repair differs from other composite repairs in that skin thicknesses are relatively thin and usually of sandwich construction. With all aircraft repairs closer attention is usually paid to the balance between weight and safety factors, aerodynamics, quality control, and substantiation. A survey of literature available on the design of aircraft repairs found little to bridge the gap between theoretical and finite element analysis versus simpler analytical or rule of thumb solutions. In depth techniques have been developed by the US Military, Boeing, and Airbus as well as more simplified techniques used by German manufacturers of light aircraft and yet much of the industry practice appears to be based on general rules of thumb that have been proven acceptable over 40 years of industry testing and use. Aircraft repairs are often classified under the headings of: nonstructural, secondary structural and primary structural. The nondestructive inspection techniques that are used to examine a structure vary widely. For the purpose of this short paper all considerations will focus