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Dynamic analysis of a delaminated composite beam due to a moving oscillatory mass

Ahmadian, M. T ; Sharif University of Technology

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  1. Type of Document: Article
  2. Abstract:
  3. This paper deals with the dynamic analysis of a delaminated composite beam under the action of moving oscillatory mass. The beam is analyzed as four interconnected sub-beams using the delamination limits as their boundaries. The constrained model is used to model the delamination region. The continuity and equilibrium conditions are satisfied between the adjoining beams. The beam response variation due to the delamination with respect to the intact beam has been investigated. Furthermore, the possible separation of the moving oscillator from the beam during the course of the motion is investigated by monitoring the contact force between the oscillator and the beam. The effect of the parameters such as the oscillator axial velocity and the size, depth and spanwise location of the delamination on the dynamic response of the beam and on the oscillator separation from the delaminated beam has been studied. It is shown that the delamination has significant influence on the dynamic response of the beam and on the oscillator separation from the beam
  4. Keywords:
  5. Axial velocity ; Constrained models ; Contact forces ; Delaminated beams ; Delaminated composite beams ; Equilibrium conditions ; Moving oscillators ; Spanwise locations ; Composite beams and girders ; Dynamic response ; Exhibitions ; Intelligent mechatronics ; Mechanical engineering ; Separation ; Delamination
  6. Source: ASME 2011 International Mechanical Engineering Congress and Exposition, IMECE 2011, 11 November 2011 through 17 November 2011 ; Volume 7, Issue PARTS A AND B , November , 2011 , Pages 863-870 ; 9780791854938 (ISBN)
  7. URL: http://proceedings.asmedigitalcollection.asme.org/proceeding.aspx?articleid=1644522