Defence Science Journal
  • Year: 2010
  • Volume: 60
  • Issue: 1

Flexural Vibration Characteristics of Initially Stressed Composite Plates

  • Author:
  • Rupesh Daripa, M.K. Singha
  • Total Page Count: 6
  • Page Number: 106 to 111

Indian Institute of Technology Delhi, New Delhi-110 016.

* E-mail: maloy@am.iitd.ac.in.

Abstract

The influence of localised in-plane load on the flexural vibration characteristics of isotropic and composite plates have been studied using a four-noded shear flexible high precision plate bending finite element. First, the critical buckling loads of such plates subjected to partial or concentrated compressive loads were calculated, then the linear and nonlinear flexural vibration frequencies were obtained. Limited parametric study was carried out to study the influences of location and distribution of tensile or compressive in-plane load on the vibration frequencies of such plates.

Keywords

Composite plate, partial in-plane load, flexural vibration, nonlinear frequency, loads, stress