Lay-up design and experimental study of the multiple corrugated diaphragms of carbon fiber reinforced polymer composite

Rebound and deformation of stainless steel during processing have brought great difficulties to forming the multiple corrugated diaphragm (MCD), seriously affecting its performance. Carbon fiber reinforced polymer composite (CFRP) provides a new idea for the design and forming methods of MCD due to its excellent performance and designability. This paper uses ABAQUS finite element analysis software to analyze the influence of laying angle and laying angle ratio on the mechanical properties of composite material MCD. Finally, the axial stiffness of the designed CFRP MCD is tested using a flexible coupling stiffness test bench. The findings demonstrate that the design values are consistent with the experimental results within an acceptable margin of error. The investigation validates the feasibility of the proposed laying design method for CFRP multi-waveform membrane discs (MCDs) and establishes a theoretical foundation for their engineering design and practical application.