Related Experiment Video
Updated: Sep 13, 2025

Studying Large Amplitude Oscillatory Shear Response of Soft Materials
Published on: April 25, 2019
In-Plane Vibration Analysis of Rectangular Plates with Elastically Restrained Boundaries Using Differential
Xianke Wang1, Weipeng Zhou2,3, Shichao Yi1,3,4
1School of Science, Jiangsu University of Science and Technology, Zhenjiang 212003, China.
Abstract:
An efficient numerical approach utilizing a variational weak form, grounded in 2D elastic theory and variational principles, is proposed for analyzing the in-plane vibrational behavior of rectangular plates resting on elastically restrained boundaries. The differential and integral operators can be discretized into matrix representations employing the differential quadrature method (DQM) and Taylor series expansion techniques. The discretization of dynamics equations stems directly from a weak formulation that circumvents the need for any transformation or discretization of higher-order derivatives encountered in the corresponding strong equations. Utilizing the matrix elementary transformation technique, the displacements of boundary and internal nodes are segregated, subsequently leading to the derivation of the generalized eigenvalue problem pertaining to the free vibration analysis of the Functionally Graded Material (FGM) rectangular plate. Furthermore, the study examines the impact of the gradient parameter, aspect ratio, and elastic constraints on the dimensionless frequency characteristics of the FGM rectangular plate. Ultimately, the modal properties of an in-plane FGM rectangular plate are investigated.
Related Concept Videos
Three-Dimensional Analysis of Strain
Relation between Poisson's ratio, Modulus of Elasticity and Modulus of Rigidity
Alternative Sets of Equilibrium Equations
One example of such a situation can be observed in a...
Method of Sections
Elastic Curve from the Load Distribution
For all beams, the analysis of the beam's reaction to distributed loads begins by understanding the relationship between a beam's load and the resulting shear forces and bending moments.
Transformation of Plane Strain
Under plane strain conditions, typical for members where one dimension significantly exceeds the others, deformations and resultant strains are...

