Structural Engineering and Mechanics

Volume 81, Number 3, 2022, pages 259-266

DOI: 10.12989/sem.2022.81.3.259

Semi-numerical simulation for effects of different loadings on vibration behavior of 2D systems

Li Rao, Chao Lin and Chenglin Zhang

Abstract

Based upon differential quadrature method (DQM) and nonlocal strain gradient theory (NSGT), an investigation on the free vibrations of 2D plate systems with nano-dimensions has been provided taking into account the effects of different mechanical loadings. In order to capture different mechanical loadings, a general form of variable compressive load applied in the axial direction of the plate system has been introduced. The studied plate has been constructed from two types of particles which results in graded material properties and nanoscale pores. The established formulation for the plate is in the context of a novel shear deformable model and the equations have been solved via a semi-numerical trend. Presented results indicate the prominence of material composition, nonlocal coefficient, strain gradient coefficient and boundary conditions on vibrational frequencies of nano-size plate.

Key Words

2D plate model; compressive loads; differential quadrature method; free vibration; nonlocal effect

Address

Li Rao, Chao Lin and Chenglin Zhang: Physical Science and Technology College, Yichun University, Yichun 33600, Jiangxi, China