Optimization Design of Carbon Fiber Reinforced Polymer Pressure-Resistant Support Pipe Layer for Dry Winding
Carbon fiber-reinforced polymers(CFRP),with their high stiffness and strength,are an advanced new material for lightweight structural design.Ply optimization design is one of the important aspects of the structural design of CFRP components.The layer structure of the CFRP pressure-resistant support pipe is optimized based on ABAQUS.[(90°/±20°)5/90°/(±20°)9/90°/(±20°/90°)5]was determined as the final layering scheme.The CFRP pressure-resistant support pipe was prepared by dry winding process,and the scheme was verified by finite element method and experimental method.The results show that the compressive strength of the CFRP pressure-resistant support pipe is 817.4 MPa,the compressive modulus is 167.7 GPa,the corresponding strength safety factor is 1.84,and the modulus safety factor is 1.86.The average compressive strength of the CFRP pressure-resistant support pipe is 683.85 MPa,the average compressive modulus is 137.9 GPa,the corresponding strength safety factor is 1.54,and the modulus safety factor is 1.53,which can meet the requirements of technical performance indicators.