Vibration of nonuniform shear deformable axisymmetric orthotropic circularplates solved by DQEM

A new numerical approach for solving the vibration of nonuniform shear defo rmable axisymmetric orthotropic circular plate problems is proposed. The ap proach uses the differential quadrature (DQ) to discretize the governing eq uations defined on each element. the transition conditions defined on the i nter-element boundary of two adjacent elements and the boundary conditions of the plate. It is a differential quadrature element method (DQEM) analysi s model. Numerical results of sample problems solved by this DQEM analysis model are presented. They prove that the developed DQEM analysis model of s hear deformable axisymmetric orthotropic circular plates is efficient. (C) 2001 Elsevier Science Ltd. All rights reserved.