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 language | English |
---|---|
Pages (from-to) | 328-334 |
Number of pages | 7 |
Journal | Mechanics of Advanced Materials and Structures |
Volume | 17 |
Issue number | 5 |
DOIs | |
Publication status | Published - 2010 Jul |
Keywords
- Dimensional stability
- Finite element analysis (FEA)
- Polymer-matrix composites (PMCs)
- Sandwich
- Thermal deformation
ASJC Scopus subject areas
- Civil and Structural Engineering
- Mathematics(all)
- Materials Science(all)
- Mechanics of Materials
- Mechanical Engineering