In this study, the nonlinear dynamic response of a hybrid laminated woven composite plate, composed of basalt
fabric, Kevlar/epoxy and E-glass/epoxy under the blast load including damping effect has been investigated. Basalt
fabric is chosen as outer layer of the plate to avoid the temperature effect of the blast wave.
Some parametric studies are conducted for the hybrid laminated composite plate subjected to blast load,
considering the influences of some parameters such as damping ratios, aspect ratios and different peak pressure
values. The amplitude of the damping ratio plays a major role on the deflection of the plate and the frequencies. The
damping effects decrease the vibration amplitude in a short time. The frequency of vibration is decreased by the
structural damping effects slightly, as expected. The vibration frequency increases with increasing the damping ratio
and in contrast, the deflection amplitude decreases.
While the aspect ratio of the hybrid plate decreases, the deflection amplitude of the plate decreases, and the
corresponding frequency increases. Different peak pressure values are applied to the hybrid plate in order to show its
effect. It is found that the deflection amplitude and the vibration frequencies increase while increasing the peak
pressure value.
In this study, only one term is taken for the each displacement function. Therefore, the contributions of the higher
modes to the structural response are not included.
A study can be performed for different boundary conditions, geometries and materials with the temperature
dependent material properties. This can be the subject of future work.