Nonlinear vibration of embedded SWBNNTs based on nonlocal Timoshenko beam theory using DQ method

作者：Arani A Ghorbanpour^*; Atabakhshian V; Loghman A; Shajari A R; Amir S

来源：Physica B: Condensed Matter , 2012, 407(13): 2549-2555.

DOI：10.1016/j.physb.2012.03.065

• Nonlinear vibration
• Nonlocal piezoelasticity
• SWBNNTs
• Timoshenko beam
• DQ method

In the present work, effect of von Karman geometric nonlinearity on the vibration behavior of a single-walled born nitride nanotube (SWBNNT) is investigated based on the nonlocal piezoelasticity theory. The SWBNNT is considered as a nonobeam within the framework of Timoshenko beam (TB). Loading is composed of a temperature change and an imposed axially electric potential throughout the SWBNNT. The interactions between the SWBNNT and its surrounding elastic medium are simulated by Winkler and Pasternak foundation models. The higher order governing equations of motion are derived using Hamilton's principle and the numerical solution of equations is obtained using Differential Quadrature (DQ) method. The effects of geometric nonlinearity, elastic foundation modulus, electric potential field, temperature change and nonlocal parameter on the frequency of the SWBNNT are studied in detail.

• 出版日期2012-7-1