Steel and Composite Structures

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Aeroelastic behavior of nano-composite beam-plates with double delaminations

  • Mousavi, S.B. (Department of Mechanical Engineering, Quchan University of Technology) ;
  • Yazdi, Ali A. (Department of Mechanical Engineering, Quchan University of Technology)
  • Received : 2019.04.01
  • Accepted : 2019.11.14
  • Published : 2019.12.10
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Abstract

In this paper aeroelastic behavior of 3-phase nano-composite beam-plate with double delaminations is investigated. It is tried to study the effect of carbon nano-tubes (CNTs) on critical flutter pressure of reinforced damaged nano-composite structures. In this case, the CNTs are appending to the polymer matrix uniformly. The Eshelby-Mori-Tanaka model is used to obtain the effective material properties of 3-phase nano-composite beam-plate. To investigate the aeroelastic behavior of delaminated beam-plate subjected to supersonic flow, it is assumed that the damaged segments are forced to vibrate together. The boundary conditions and auxiliary conditions at edges of delaminated segments are used to predict critical flutter pressure. The influence of CNTs and different delamination parameters such as delamination length, axial position and its position through thickness are investigated on critical flutter pressure.

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References

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