Analysis of thermal deformation on a honeycomb sandwich CFRP mirror

Yoshihiko Arao, Jun Koyanagi, Shin Utsunomiya, Hiroyuki Kawada

研究成果: Article査読

17 被引用数 (Scopus)

抄録

Thermal deformation analysis was performed on a carbon fiber reinforced plastic (CFRP) mirror with sandwich structure. To obtain unexpected asymmetry of the surface sheet, we investigated the deformation of a quasi-isotropic laminate under hot and humid conditions. Despite the symmetric lay-up, quasi-isotropic laminate deforms into twisted saddle shape with time, and this deformation could be simulated by assuming ply angle misalignment. Then, the elastic moduli of honeycomb cores were calculated theoretically. A honeycomb sandwich mirror model was constructed by adopting a sheet model and using honeycomb elements. The thermal deformation analysis was performed considering the ply angle misalignment. The test results clarified that the deformation of the surface sheet was a critical factor in the dimensional stability of the CFRP mirror.

本文言語English
ページ(範囲)328-334
ページ数7
ジャーナルMechanics of Advanced Materials and Structures
17
5
DOI
出版ステータスPublished - 2010 7

ASJC Scopus subject areas

  • 土木構造工学
  • 数学 (全般)
  • 材料科学(全般)
  • 材料力学
  • 機械工学

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