Numerical Simulation of Composite Material Light-Curing Process Based on the Finite Element Analysis Method

Compared to the traditional thermal curing method, ultraviolet light-curing can effectively avoid the problems of long curing time and complicated curing equipment. In this paper, a geometric and physical model of the light-curing process of the glass fiber reinforced composite multilayer laminate is established based on the theory of optics and curing kinetics, considering the propagation of ultraviolet light in the laminate is affected by the interlayer during the light-curing process. The meta-analysis method is adopted to calculate and predict the changes in the curing degree, temperature, and stress fields during the light-curing process of glass fiber composites, which also analyzes and summarizes the multi-field distribution and its variation law during the process. By comparing the experimental data with the predicted results, the model's accuracy is verified, and the causes of errors are analyzed, providing an efficient analysis method to investigate the composite light-curing.