Out-of-Plane Thermal Deformation of CFRP Laminated Curved Plates

抄録

Carbon Fiber Reinforced Plastic (CFRP) is often used for space telescopes because of its high specific stiffness and low coefficient of thermal expansion. CFRP structures with complex 3D shapes are expected to be used in the near future, and thus the thermal deformation characteristics of CFRP structures with an arbitrary shape is needed to be studied. In this research, the out-of-plane thermal deformation of CFRP laminated curved plates was evaluated using experiments and numerical analysis. Two L-shaped curved parts with different curvature radii were considered. The experimental results showed that heating increases the curve angle, and the difference in curvature radius does not affect the curve angle change. The result of numerical analysis using solid elements shows the qualitative agreement with the experimental result. However, there is an approximately -30 % difference to be solved between the calculated and measured curve angle change.