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The flapwise free vibration characteristics of a rotating composite beam under aerodynamic force and hygrothermal environment are studied in this work. The partial differential equation governing the flapwise free vibration of the beam is derived based on D’Alembert’s principle. The modal problem is handled utilizing the assumed-modes method. The effects of temperature, humidity, aerodynamic force,...
A theoretical study is presented herein on the penetration and perforation of fibre-reinforced plastic (FRP) laminates struck normally by conical-nosed projectiles over a wide range of velocities. The formulations are based on the assumption that the deformation is localized and that the pressure offered by the laminate targets to resist the projectiles is velocity dependent which can be divided into...
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