Influence of Layup Sequence on the Surface Accuracy of Carbon Fiber Composite Space Mirrors
| Autor: | Zhanwen Tang, Qingnian Liu, Liang Xu, Boming Zhang, Yongjie Xie, Zhiyong Yang |
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| Rok vydání: | 2018 |
| Předmět: |
0301 basic medicine
Surface (mathematics) Materials science 030102 biochemistry & molecular biology Composite number Stacking Curved mirror Stiffness 02 engineering and technology Deformation (meteorology) 021001 nanoscience & nanotechnology Finite element method 03 medical and health sciences Ceramics and Composites medicine medicine.symptom Composite material 0210 nano-technology Focus (optics) |
| Zdroj: | Applied Composite Materials. 26:219-238 |
| ISSN: | 1573-4897 0929-189X |
| Popis: | Layup sequence is directly related to stiffness and deformation resistance of the composite space mirror, and error caused by layup sequence can affect the surface precision of composite mirrors evidently. Variation of layup sequence with the same total thickness of composite space mirror changes surface form of the composite mirror, which is the focus of our study. In our research, the influence of varied quasi-isotropic stacking sequences and random angular deviation on the surface accuracy of composite space mirrors was investigated through finite element analyses (FEA). We established a simulation model for the studied concave mirror with 500 mm diameter, essential factors of layup sequences and random angular deviations on different plies were discussed. Five guiding findings were described in this study. Increasing total plies, optimizing stacking sequence and keeping consistency of ply alignment in ply placement are effective to improve surface accuracy of composite mirror. |
| Databáze: | OpenAIRE |
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