| 引用本文: | LIU Bo,WANG Jinming,HAN Han,TAO Jingya,LIU Tao,ZHANG Xiaodong,YI Guo,LIU Yihui.Multilevel Tests and Measurement Evaluation Methods for the Application of Composite Materials in Spacecraft Structures[J].上海航天,2022,39(1):111-121. |
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| 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. |
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1.Shanghai Spaceflight Precision Machinery Institute， Shanghai 201600， China;2.Shanghai Aerospace Engineering Research Institute， Shanghai 201108， China;3.Shanghai Academy of Spaceflight Technology， Shanghai 201109， China
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