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Prestress in Nanochemical Tubular Structures with Thermoelastic Damping Effect

Sun–Bae Kim, Seok–Joo Kang, Ji–Hwan Kim

Abstract


Present work deals with the thermo-elastic damping analysis of nano-tube under the initial stress effects. Donnell-Mushtari - Vlasov (DMV) assumptions are adopted to simplify the model of the tube. Further, the effects of size, initial-stress effects on the natural frequency and Quality-factor(Q-factor) of the model are fully examined. To consider the influence of thermal flow, temperature distribution is determined at first by considering the thermal conductivity, the heat capacity coeff-icient at constant pressure, and the coefficient of thermal expan-sions. Also, the shell equations are to be simplified using the DMV method, that is to say, in-plane displacements are neglected only in the bending strains. Therefore, the coupled sets of equations of motion and compatibility equations are derived under the thermal effects. The Q-factor is evaluated and discussed for a Single-Walled Carbon Nano-tube (SWCN).

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References


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DOI: http://dx.doi.org/10.21535%2FProICIUS.2012.v8.795

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