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Applied Composite Materials

, Volume 26, Issue 2, pp 469–478 | Cite as

Thermal Stability Analysis and Experimental Study of a New Type of Grid-Reinforced Carbon Fiber Mirror

  • Liang XuEmail author
  • Jiaoteng Ding
  • Yongjie Wang
  • Yongjie Xie
  • Xiaoge Wu
  • Zhen Ma
Article
  • 507 Downloads

Abstract

Due to low density, high specific stiffness, and low thermal expansion, carbon fiber reinforced plastic (CFRP) is one of potential materials for high precise components. For high precise structures such as reflectors and optical mirrors, usually strict thermal stability required. In order to ensure rigidity and thermal deformation resistance, carbon fiber mirrors are usually designed as a grid-reinforced sandwich structure. In order to improve the thermal stability of carbon fiber mirrors, a new type of grid-reinforced sandwich structure design is proposed. Finite element method was used to analyze the thermal deformations of the carbon fiber mirror without manufacturing error and with manufacturing error. In order to overcome the effect of moisture absorption deformation, thermal deformation test of the carbon fiber mirror was performed in a vacuum tank. The test results verify the reliability of the finite element analysis results. For Φ100mm center aperture of the Φ150mm carbon fiber mirror, the test results show that the thermal stability is about 4 nm/°C, which is enough for optical mirror application, although “grid effect” existed.

Keywords

Grid reinforced Carbon fiber mirror Thermal stability Finite element Grid effect 

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Copyright information

© Springer Science+Business Media B.V., part of Springer Nature 2018

Authors and Affiliations

  1. 1.Xi’an Institute of Optics&Precision MechanicsChinese Academy of SciencesXi’anChina

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