Scientific Research and Essays

  • Abbreviation: Sci. Res. Essays
  • Language: English
  • ISSN: 1992-2248
  • DOI: 10.5897/SRE
  • Start Year: 2006
  • Published Articles: 2740

Full Length Research Paper

Covering stack of layers consisting of a single layer: Local near-surface buckling instability

E. A. Hazar* and O. Akkoyunlu
Department of Physics, Faculty of Arts and Sciences, Sakarya University, Esentepe Campus, Post box: 54187, Sakarya, Turkey.
Email: [email protected]

  •  Accepted: 16 July 2012
  •  Published: 16 August 2012

Abstract

 

The local near-surface buckling of a material system consisting of a half-space, which is covered by the single layer and half-space materials is elastic within the framework of a three-dimensional linearized theory of stability (TLTS). The equations of TLTS are obtained from the three-dimensional geometrically nonlinear equations of the theory of viscoelasticity by using the boundary form perturbations technique. By employing the Laplace and Fourier transform, a method for solving the problem is developed. Numerical results on the critical compressive forces and the critical times are presented.

 

Key words: Buckling instability, curved-layer, critical time, local near-surface buckling, stability, viscoelastic layer.