Damped Free Vibration Analysis of Woven Glass Fiber-Reinforced Epoxy Composite Laminates

Table 5

Comparison of experimental and analytical frequency values of 50/50, 60/40, and 70/30% composites.

Experimental and analytical frequency values of the 50/50% composite plate
Frequency (Hz)	Mode 1	Mode 2	Mode 3	Mode 4
Experimental	31.02	278.18	285.23	672.89
Analytical	32.13	201.71	211.27	567.41
Experimental and analytical frequency values of the 60/40% composite plate
Experimental	37	313.13	346.98	732.47
Analytical	46.06	227.42	288.77	797.55
Experimental and analytical frequency values of the 70/30% composite plate
Experimental	47.18	369.61	413.82	1030.70
Analytical	55.89	245.38	350.11	952.57