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Materiale Plastice
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https://doi.org/10.37358/Mat.Plast.1964

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Materiale Plastice (Mater. Plast.), Year 2010, Volume 47, Issue 4,





Marius Marinel Stanescu, Dumitru Bolcu, Stefan Dan Pastrama, Ion Ciuca, Ion Manea, Florin Baciu Determination of Damping Factor at the Vibrations of Composite Bars Reinforced with Carbon and Kevlar Texture


Abstract:
In this paper, it is showed that a mechanical model with one degree of freedom can be used to study the vibrations of a bar in a certain point. The considered structures were made of epoxy resin reinforced with carbon and carbon-kevlar texture. The vibrations in the free end of the bar, clamped at the other end, were determined experimentally for four different lengths. Eigenfrequencies and damping factor for the first modes of vibration were obtained for each bar. Relationships for the eigenfrequency and damping factor are proposed, as a function of the length of the bar, for each of the studied materials. Keywords: Eigenfrequency, damping factor, composite bar



Issue: 2010 Volume 47, Issue 4
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