STUDIES ON DAMPING PROPERTIES OF EPOXY-CYANATE/ GLASS FIBRE COMPOSITES BY PASSIVE CONTROL
Keywords:
Cyanate / Epoxy Composites, Damping Factor, FEM, VibrationAbstract
Polymer composite as a novel damping material has attracted great interest in the development because of its excellent stiffness and damping characteristics. The methodology for vibration suppression of structures can be categorized into two groups, namely passive and active controls. In passive control, the material properties of structure such as damping and stiffness are modified so as to change the response of structure. A typical example of passive control is tailoring of composite materials. A lot of research on tailoring of the composite material has been carried out actively in terms of the effect of fiber orientation on stiffness, strength and damping ratio. In the present investigation tailoring of composite material is done by addition of another inherently tough material (cyanate ester resin) to conventional epoxy resin system. The effect of cyanate loading on natural frequency and damping coefficient are determined. The experimental studies are further confirmed by FEM analysis
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