## What is/are Timoshenko Microbeams?

Timoshenko Microbeams - Viscosity effects on the mechanical behaviour of functionally graded (FG) Timoshenko microbeams are investigated; the model possesses both linear nonlinear viscous terms.^{[1]}In this paper, the nonlinear forced vibration of functionally graded (FG) Timoshenko microbeams under thermal effects and parametric excitation is studied using von Karman nonlinear theory, Hamilton's principle and the modified couple stress theory.

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