Free Vibrations of Three-Dimensional Woven Composite Made of Aramid Glass, Epoxy Graphite and Epoxy Carbon Fibers

Nowadays, composite materials are widely used in various industries, including aerospace, automotive, and military sectors. In many of these applications, there is a need to understand the dynamic and vibrational responses due to changes in different parameters for a more precise structural analysis. This study examines the impact of varying fiber types under different boundary conditions on the natural frequency of a three-dimensional woven composite rectangular plate. For this purpose, the Ritz theory has been used to calculate the system’s natural frequency, and to validate the results, the current analysis method has been compared with previous research findings and results from finite element software simulations. The results obtained from the analytical solution and finite element simulation correlate well.