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Dynamic analysis of orthotropic laminated composite plates under axial load on elastic foundation

Ahmadian, M. T ; Sharif University of Technology | 2006

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  1. Type of Document: Article
  2. Publisher: American Society of Mechanical Engineers (ASME) , 2006
  3. Abstract:
  4. In this paper, free vibration analysis of laminated composite plates is carried out using first shear deformation theory and finite element method. Effect of axial tension and compression forces on the natural frequencies of the structure is investigated. Applying elastic foundation under the laminated composite plates has enabled us to achieve desired frequencies. The displacements are based C0 - nine plate bending element and each node has three degree of freedom. The equations of motion are derived using Hamilton's principle. Results indicate the tension forces will increase the natural frequency while the compression force reduces the natural frequency. The buckling force of plate is computed by increasing the absolute value of compressive force until the natural frequency tends to zero. Dynamic of moving mass in a circular path on the laminated composite plate is also investigated. Displacement of plate center reveals a sinusoidal pattern in time. Copyright © 2006 by ASME
  5. Keywords:
  6. Degrees of freedom (mechanics) ; Dynamic analysis ; Hamiltonians ; Laminated composites ; Natural frequencies ; Shear deformation ; Vibration analysis ; Laminated composite plates ; Sinusoidal pattern ; Plates (structural components)
  7. Source: 2006 ASME International Mechanical Engineering Congress and Exposition, IMECE2006, Chicago, IL, 5 November 2006 through 10 November 2006 ; 2006 ; 10716947 (ISSN); 0791837904 (ISBN); 9780791837900 (ISBN)
  8. URL: https://asmedigitalcollection.asme.org/IMECE/proceedings-abstract/IMECE2006/47683/1569/323080