Stability Analysis of a Laminated Composite Micro Scaled Beam Embedded in Elastic Medium using Modified Coupled Stress Theory

Document Type : Research Paper

Author
Şeref Doğuşcan Akbaş
Civil Engineering, Engineering Fac., Bursa Technical University, Bursa,Turkey
10.22059/jcamech.2024.370519.934
Abstract
This paper presents size dependent stability analysis a cantilever micro laminated beam embedded in elastic medium by using the modified coupled stress theory which includes the length scale parameter. The micro beam subjected to compressive load is considered as three composite laminas and embedded in elastic medium which is modelled in the Winkler foundation model. In the obtaining of the governing equations, the energy principle is used. In the solution of the buckling problem, the energy based Ritz method is implemented with algebraic polynomials. In order to accuracy obtained expressions and used method, a comparative study is performed. Many parametric studies are presented in order to investigate the buckling of laminated micro beams. For this purpose, effects of stacking sequence of laminas, geometric parameters, length scale parameter, fiber orientation angle, the parameter of elastic medium on critical buckling loads of laminated micro beams are investigated.
Keywords
Micro Scaled Beam
Laminated Composites
Buckling
Elastic Medium
Modified Coupled Stress Theory
Subjects
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Journal of Computational Applied Mechanics
Volume 55, Issue 1
Winter 2024
Pages 26-38

  • Receive Date 03 January 2024
  • Revise Date 06 February 2024
  • Accept Date 06 February 2024