Influence of Winding Parameters and Fiber Volume Fraction on Mechanical Properties of Fiber Reinforced Composites and Parameter Optimization

Abstract

ABSTRACT The wet winding process is a critical manufacturing technology for producing carbon fiber‐reinforced polymer (CFRP) composites. This study investigates the influence of winding tension, doctor blade gap, and winding speed on the interlaminar shear strength (ILSS), porosity, and fiber volume fraction (FVF) of Navy Ordnance Laboratory (NOL) rings. The response surface method was used to analyze the effect of different process parameters and FVF on the performance of NOL rings. A mathematical model for predicting different quality characterization parameters of NOL rings was established based on the experimental data, and analysis of variance verified the significance and accuracy of the prediction model. Based on gray relational analysis, it was found that winding tension is the most critical factor affecting CFRP performance, and that selecting the doctor blade gap can effectively reduce the porosity of CFRP. Finally, with the objective of maximizing ILSS and minimizing porosity, a parameter optimization strategy has been established, and the accuracy of the optimization was verified through experiments. This research provides winding parameter schemes for the manufacture of CFRP.