Free Vibration Test for Damping Characteristics of Hybrid Polyester Matrix Composite with Carbon Particles

Abstract:

In this research aims to study the damping characteristics of hybrid polymer composite, which can be used in engineering structures and in many other applications. Hybrid composites are namely Glass fiber and carbon filler reinforced with polyester and epoxy matrix have been prepared by vacuum bag molding fabrication technique. Then the free vibration test were conducted using FFT analyzer with Lab VIEW software. The damping ratio and natural frequency were investigated for fabricated composites. Then through ANSYS, the mode shapes and natural frequencies were determined and the results were compared with experimental results. The damping ratio increases with increased volume fractions of E-glass fibers for both the types of polymer composites. Vibrations are concerned to large structures such as aircraft, as well as small structures such as electronic equipments.

• Periodical: Nano Hybrids and Composites (Volume 11)
• Pages: 1-6
• DOI: https://doi.org/10.4028/www.scientific.net/NHC.11.1
• Online since: October 2016
• Authors: K. Karthik*, R. Rohith Renish, I. Irfan Ahmed, T. Niruban Projoth
• Keywords: Damping, Free Vibration Test, Hybrid Polymer Composites, Natural Frequency

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