| LI Chuanzheng(李传政)* **,XU Shuyan*,DONG Jihong*,LIU Bo*,ZHANG Yaoyu*,ZHENG Fusheng***.[J].高技术通讯(英文),2023,29(1):22~30 |
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| Experimental and numerical investigation of a composite structure with frame and skin |
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| DOI：10. 3772/ j. issn. 1006-6748. 2023. 01. 003 |
| 中文关键词: |
| 英文关键词: composite, tensile test, hybrid bonded/bolted joint, bolted connection, finite element analysis |
| 基金项目: |
| Author Name | Affiliation | | LI Chuanzheng(李传政)* ** | (*Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, P.R.China)
(**University of Chinese Academy of Sciences, Beijing 100049, P.R.China)
(***School of Mechanical and Aerospace Engineering, Jilin University, Changchun 130025, P.R.China) | | XU Shuyan* | (*Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, P.R.China)
(**University of Chinese Academy of Sciences, Beijing 100049, P.R.China)
(***School of Mechanical and Aerospace Engineering, Jilin University, Changchun 130025, P.R.China) | | DONG Jihong* | (*Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, P.R.China)
(**University of Chinese Academy of Sciences, Beijing 100049, P.R.China)
(***School of Mechanical and Aerospace Engineering, Jilin University, Changchun 130025, P.R.China) | | LIU Bo* | (*Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, P.R.China)
(**University of Chinese Academy of Sciences, Beijing 100049, P.R.China)
(***School of Mechanical and Aerospace Engineering, Jilin University, Changchun 130025, P.R.China) | | ZHANG Yaoyu* | (*Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, P.R.China)
(**University of Chinese Academy of Sciences, Beijing 100049, P.R.China)
(***School of Mechanical and Aerospace Engineering, Jilin University, Changchun 130025, P.R.China) | | ZHENG Fusheng*** | (*Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, P.R.China)
(**University of Chinese Academy of Sciences, Beijing 100049, P.R.China)
(***School of Mechanical and Aerospace Engineering, Jilin University, Changchun 130025, P.R.China) |
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| 中文摘要: |
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| 英文摘要: |
| A composite structure with frame and skin based on cabin structure in a large space telescope is studied in this paper. The frame is composed of longitudinal and transverse beams with hybrid bonded/bolted joints, and the skin is connected to the frame by bolts. Tensile tests are conducted on the structure by a set of test stand. It is observed that residual deformation occurs in the first test of the structure, which is attributed to the relative sliding between the skin and frame because of bolt-hole clearances. The high tightening torque and the increased number of the skin frame bolts contribute to the high stiffness of the structure. A finite element model (FEM) of this composite structure is established, and the simulation model is verified by the experimental results. The FEM is contrastively analyzed with different frame joints, and it is found that adhesive joining in the hybrid bonded/bolted joints enhances the stiffness of the structure significantly. Given that adhesive plays a leading role in the stiffness of the hybrid joints, Tie contact in FEM is proposed to simulate bonded or hybrid joints when studying the stiffness performance of undamaged structure. |
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