Abstract:Wrinkling is caused during transportation due to vehicle vibrations and bumps. Three-dimensional physical model of copper foil and FRP tube was established. The mesh quality was verified via ICEM CFD mesh division. Static, modal, and harmonic response analysis was carried out. The results showed that when the wall thickness of the FRP tube was 15 mm and the weight of the copper foil was 600 kg, the maximum deformation of the copper foil reached 1.5634×10^-5 m, and the maximum equivalent stress was 1.8217×10^6 Pa. The maximum deformation of FRP tube was 1.5676×10^-5 m, and the maximum equivalent stress was 7.883×10^6 Pa. The increase in copper foil weight (600 kg to 700 kg) led to a significant increase in deformation and stress. The maximum deformation increase of copper foil was 32.7%. However, the increase in FRP tube wall thickness (15 mm to 25 mm) could effectively reduce copper foil deformation (23.8% reduction) and stress (26.1% reduction). Further research found that the stress difference between the ends and the middle of the copper foil led to wrinkling formation in the area of 8%~18% away from the two ends of the copper foil, which was consistent with the wrinkling area during actual copper foil transportation. Based on this, it was proposed to optimize the transportation structure by adjusting the wall thickness of FRP tube and the weight of copper foil, providing a theoretical basis for reducing copper foil wrinkles.