Vibration characteristics of two-dimensional FGM nanobeams with couple stress and surface energy under general boundary conditions

This paper presents a comprehensive investigation of the size-dependent vibration response of two-dimensional functionally graded (2D-FG) micro/nanoscale beams with various boundary conditions in the context of a microstructure-surface energy-based model, for the first time. The size-dependent 2D-FG beam model is developed based on Euler-Bernoulli beam theory with the aid of the modified couple stress and surface elasticity theories to capture...