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Dynamic stability analysis of a sandwich beam with magnetorheological elastomer core subjected to a follower force

Rokn Abadi, M ; Sharif University of Technology | 2020

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  1. Type of Document: Article
  2. DOI: 10.1007/s00707-020-02735-2
  3. Publisher: Springer , 2020
  4. Abstract:
  5. In the present study, the effect of using magnetorheological elastomer materials and a magnetic field on the dynamic stability of a sandwich beam under a follower force has been investigated for various boundary conditions. The considered sandwich beam consists of a magnetorheological elastomer core constrained by elastic layers. The structural governing equations are derived using Hamilton’s principle and solved by the finite element method. The validity of the result is examined by comparison with those in the literature. The effects of variation in the parameters such as magnetic field intensity and the thickness of the layers on the stability of the sandwich beam are studied. Finally, some conclusions for the effects of the magnetic field intensity on the magnetorheological elastomer sandwich beam subjected to the follower force are discussed. © 2020, Springer-Verlag GmbH Austria, part of Springer Nature
  6. Keywords:
  7. Composite beams and girders ; Elastomers ; Plastics ; Sandwich structures ; Dynamic stability analysis ; Elastic layers ; Follower forces ; Governing equations ; Magnetic-field intensity ; Magneto-rheological elastomers ; Sandwich beams ; Various boundary conditions ; Magnetic field effects
  8. Source: Acta Mechanica ; Volume 231, Issue 9 , 2020 , Pages 3715-3727
  9. URL: https://link.springer.com/article/10.1007%2Fs00707-020-02735-2