Analysis of thermal deformation on a honeycomb sandwich CFRP mirror

Yoshihiko Arao, Jun Koyanagi, Shin Utsunomiya, Hiroyuki Kawada

    Research output: Contribution to journalArticle

    12 Citations (Scopus)

    Abstract

    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.

    Original languageEnglish
    Pages (from-to)328-334
    Number of pages7
    JournalMechanics of Advanced Materials and Structures
    Volume17
    Issue number5
    DOIs
    Publication statusPublished - 2010 Jul

    Fingerprint

    Thermal Deformation
    Carbon Fiber
    Honeycomb
    Carbon fiber reinforced plastics
    Sandwich
    Plastics
    Mirror
    Mirrors
    Misalignment
    Laminates
    Sandwich Structures
    Angle
    Elastic Modulus
    Saddle
    Asymmetry
    Sandwich structures
    Dimensional stability
    Model
    Elastic moduli
    Hot Temperature

    Keywords

    • Dimensional stability
    • Finite element analysis (FEA)
    • Polymer-matrix composites (PMCs)
    • Sandwich
    • Thermal deformation

    ASJC Scopus subject areas

    • Mechanical Engineering
    • Mechanics of Materials
    • Civil and Structural Engineering
    • Materials Science(all)
    • Mathematics(all)

    Cite this

    Analysis of thermal deformation on a honeycomb sandwich CFRP mirror. / Arao, Yoshihiko; Koyanagi, Jun; Utsunomiya, Shin; Kawada, Hiroyuki.

    In: Mechanics of Advanced Materials and Structures, Vol. 17, No. 5, 07.2010, p. 328-334.

    Research output: Contribution to journalArticle

    Arao, Yoshihiko ; Koyanagi, Jun ; Utsunomiya, Shin ; Kawada, Hiroyuki. / Analysis of thermal deformation on a honeycomb sandwich CFRP mirror. In: Mechanics of Advanced Materials and Structures. 2010 ; Vol. 17, No. 5. pp. 328-334.
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