Determination of Damping Factor at the Vibrations of Composite Bars Reinforced with Carbon and Kevlar Texture

作者：Stanescu Marius Marinel^*; Bolcu Dumitru; Pastrama Stefan Dan; Ciuca Ion; Manea Ion; Baciu Florin

来源：Materiale Plastice, 2010, 47(4): 492-496.

• Eigenfrequency
• damping factor
• composite bar

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.

• 出版日期2010-12