Effect of Lamina Thickness of Prepreg on the Surface Accuracy of Carbon Fiber Composite Space Mirrors
| Autor: | Zhiyong Yang, Hongjun Guo, Zhanwen Tang, Boming Zhang, Yongjie Xie, Hanqiao Shi |
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| Rok vydání: | 2017 |
| Předmět: |
Optimal design
Surface (mathematics) Lamina Materials science business.industry Composite number 02 engineering and technology Replication (microscopy) 021001 nanoscience & nanotechnology Space (mathematics) 01 natural sciences Finite element method 010309 optics Carbon fiber composite Optics 0103 physical sciences Ceramics and Composites Composite material 0210 nano-technology business |
| Zdroj: | Applied Composite Materials. 25:105-112 |
| ISSN: | 1573-4897 0929-189X |
| Popis: | Composite space mirror can completely replicate the high-precision surface of mould by replication process, but the actual surface accuracy of the replication composite mirror always decreases. Lamina thickness of prepreg affects the layers and layup sequence of composite space mirror, and which would affect surface accuracy of space mirror. In our research, two groups of contrasting cases through finite element analyses (FEA) and comparative experiments were studied; the effect of different lamina thicknesses of prepreg and corresponding lay-up sequences was focused as well. We describe a special analysis model, validated process and result analysis. The simulated and measured surface figures both get the same conclusion. Reducing lamina thickness of prepreg used in replicating composite space mirror is propitious to optimal design of layup sequence for fabricating composite mirror, and could improve its surface accuracy. |
| Databáze: | OpenAIRE |
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