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Large amplitude thermo-mechanical vibration analysis of asymmetrically laminated composite beams

Fallah, A ; Sharif University of Technology | 2011

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  1. Type of Document: Article
  2. DOI: 10.4028/www.scientific.net/KEM.471-472.745
  3. Publisher: 2011
  4. Abstract:
  5. In this paper, simple analytical expression is presented for large amplitude thermomechanical free vibration analysis of asymmetrically laminated composite beams. Euler-Bernoulli assumptions together with Von Karman's strain-displacement relation are employed to derive the nonlinear governing partial differential equation (PDE) of motion. He's variational method is employed to obtain a simple and efficient approximate closed form solution of the nonlinear governing equation. Comparison between results of the present work and those available in literature shows the accuracy of presented technique. Some new results for the nonlinear natural frequencies of the laminated beams such as the effect of vibration amplitude, lay-up configuration and thermal loading are presented for future references
  6. Keywords:
  7. Asymmetrically laminated beams ; Analytical expressions ; Closed form solutions ; Effect of vibration ; Euler-Bernoulli ; Free-vibration analysis ; Governing equations ; Laminated beams ; Laminated composite beam ; Large amplitude ; New results ; Strain-displacement relation ; Thermal loadings ; Thermo-mechanical ; Thermo-mechanical vibration ; Variational methods ; Von Karman ; Composite beams and girders ; Laminated composites ; Laminating ; Nonlinear analysis ; Nonlinear equations ; Partial differential equations ; Vibration analysis
  8. Source: Key Engineering Materials, 22 March 2011 through 24 March 2011, Kuala Lumpur ; Volume 471-472 , 2011 , Pages 745-750 ; 10139826 (ISSN) ; 9783037850596 (ISBN)
  9. URL: http://www.scientific.net/KEM.471-472.745