Modares Mechanical Engineering

Modares Mechanical Engineering

Dynamic response of laminated hybrid composite beams reinforced with high weight fraction of nano particles

Abstract
In the present work the dynamic response of laminated composite beam reinforced with nano-particles has been investigated. Most of the existing works on the effects of nano-particles on stiffness of the composite structures are limited to very low weight fraction, around 3% to 5%. This work studies the effect of higher percent of Nano particles (up to 10%) on the dynamic behavior of the composite structures via experimental tests. Adding Nano clay up to 3% of weight fraction increases the natural frequency, beyond that up to 5 % the natural frequency slightly decreases and at 10% a sharp reduction in natural frequency is observed. Another feature of importance is the increasing damping coefficient of laminated beam when the amount of nano-particles reaches to 10%.
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