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Dynamic response of a delaminated beam due to a moving force

Jafari Talookolaei, R.A ; Sharif University of Technology | 2012

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  1. Type of Document: Article
  2. Publisher: Katholieke Universiteit Leuven , 2012
  3. Abstract:
  4. This paper deals with the dynamic analysis of a delaminated Bernoulli-Euler beam with constrained model under the action of an external moving force. The beam is analyzed as four interconnected sub-beams using the delamination as their boundaries. The continuity and compatibility conditions are satisfied between adjoining beams. An analytical solution is presented in a basis of the series expansion of the unknown deflection. The delaminated beam response differences with the healthy beam have been investigated. Effect of the parameters like the moving speed of the force and the size, depth and spanwise location of the delamination on the dynamic response of the beam has been studied. Numerical results show that the delamination parameters have significant influence on the dynamic response of the beam. It should be pointed out that the analytical solution, although presented for a single delamination, is valid for beams with multiple delaminations as well. © (2012) by the Katholieke Universiteit Leuven Department of Mechanical Engineering All rights reserved
  5. Keywords:
  6. Dynamic response ; Structural dynamics ; Bernoulli-Euler beam ; Compatibility conditions ; Constrained models ; Delaminated beams ; Multiple delaminations ; Numerical results ; Series expansion ; Spanwise locations ; Delamination
  7. Source: International Conference on Noise and Vibration Engineering 2012, ISMA 2012, including USD 2012: International Conference on Uncertainty in Structure Dynamics, 17 September 2012 through 19 September 2012 ; Volume 4 , September , 2012 , Pages 3189-3200 ; 9781622768257 (ISBN)