Sadhana

, Volume 39, Issue 3, pp 583–596 | Cite as

Buckling analysis of rectangular composite plates with rectangular cutout subjected to linearly varying in-plane loading using fem

  • A LAKSHMI NARAYANA
  • KRISHNAMOHANA RAO
  • R VIJAYA KUMAR
Article

Abstract

A numerical study is carried out using finite element method, to examine the effects of square and rectangular cutout on the buckling behavior of a sixteen ply quasi-isotropic graphite/epoxy symmetrically laminated rectangular composite plate [0°/+45°/-45°/90°]2s, subjected to various linearly varying in-plane compressive loads. Further, this paper addresses the effects of size of square/rectangular cutout, orientation of square/rectangular cutout, plate aspect ratio(a/b), plate length/thickness ratio(a/t), boundary conditions on the buckling bahaviour of symmetrically laminated rectangular composite plates subjected to various linearly varying in-plane compressive loading. It is observed that the various linearly varying in-plane loads and boundary conditions have a substantial influence on buckling strength of rectangular composite plate with square/rectangular cutout.

Keywords

Buckling rectangular cutout linearly varying in-plane load boundary conditions symmetrically laminated rectangular composite plates finite element analysis quasi-isotropic 

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Copyright information

© Indian Academy of Sciences 2014

Authors and Affiliations

  • A LAKSHMI NARAYANA
    • 1
  • KRISHNAMOHANA RAO
    • 2
  • R VIJAYA KUMAR
    • 3
  1. 1.HAL, Rotary Wing Research and Design Centre (RWR&DC)BangaloreIndia
  2. 2.Department of Mechanical Engineering, JNTUHHyderabadIndia
  3. 3.Hindustan Aeronautics Limited, Rotary Wing Research and Design Centre (RWR&DC)BangaloreIndia

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