HB 8669-2022 民用直升机复合材料机体结构设计要求

HB 8669-2022 The structural design requirements for composite material bodies of civilian helicopters are as follows: Composite material bodies of civilian helicopters require careful consideration of design requirements such as mechanical properties, fatigue resistance, corrosion resistance, and durability. These requirements should be met through proper selection of materials, manufacturing methods, and assembly techniques