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Experimental and numerical investigation of a composite structure with frame and skin
C. Li; S. Xu; J. Dong; B. Liu; Y. Zhang and F. Zheng
2023
发表期刊High Technology Letters
ISSN10066748
卷号29期号:1页码:22-30
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. © 2023 Inst. of Scientific and Technical Information of China. All rights reserved.
DOI10.3772/j.issn.1006-6748.2023.01.003
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文献类型期刊论文
条目标识符http://ir.ciomp.ac.cn/handle/181722/67602
专题中国科学院长春光学精密机械与物理研究所
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C. Li,S. Xu,J. Dong,et al. Experimental and numerical investigation of a composite structure with frame and skin[J]. High Technology Letters,2023,29(1):22-30.
APA C. Li,S. Xu,J. Dong,B. Liu,&Y. Zhang and F. Zheng.(2023).Experimental and numerical investigation of a composite structure with frame and skin.High Technology Letters,29(1),22-30.
MLA C. Li,et al."Experimental and numerical investigation of a composite structure with frame and skin".High Technology Letters 29.1(2023):22-30.
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