Multilevel Tests and Measurement Evaluation Methods for the Application of Composite Materials in Spacecraft Structures

• 作者: LIU Bo WANG Jinming HAN Han TAO Jingya LIU Tao ZHANG Xiaodong YI Guo LIU Yihui
• 来源期刊: 上海航天（中英文）
• 学科: 航空航天
• 年，卷（期）: 2022,（1）
• 所属期刊栏目: Composite Materials
• 页码范围: 111-121
• 页数: 11页
• 分类号: V416.1
• 语种: 中文
• DOI: 10.19328/j.cnki.2096‑8655.2022.01.011

摘要

With the implementation of new-generation launch vehicles,space stations,lunar and deep space exploration,etc.,the development of spacecraft structures will face new challenges. In order to reduce the spacecraft weight and increase the payload,composite material structures will be widely used. It is difficult to evaluate the strength and life of composite materials due to their complex mechanism and various phenomena in damage and failure. Meanwhile,the structures of composite materials used in spacecrafts will bear complex loads,including the coupling loads of tension,pressure,bending,shear,and torsion. Static loads,thermal loads,and vibration loads may occur at the same time,which asks for verification requirements to ensure the structure safety. Therefore,it is necessary to carry out a systematic multi-level experimental study. In this paper,the building block approach(BBA)is used to investigate the multilevel composite material structures for spacecrafts. The advanced measurement technology is adopted based on digital image correlation(DIC)and piezoelectric and optical fiber sensors to measure the composite material structure deformation. The virtual experiment technology is applied to provide sufficient and reliable data for the evaluation of the composite material structures of spacecrafts.