Smart Structures and Systems

  • 제25권4호
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  • Pages.471-486
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  • 2020
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  • 1738-1584(pISSN)
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  • 1738-1991(eISSN)
테크노프레스 (Techno-Press)
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Smart analysis of doubly curved piezoelectric nano shells: Electrical and mechanical buckling analysis

  • Arefi, Mohammad (Department of Solid Mechanics, Faculty of Mechanical Engineering, University of Kashan)
  • 투고 : 2019.06.06
  • 심사 : 2019.10.25
  • 발행 : 2020.04.25
⟨ 이전 논문 다음 논문 ⟩

초록

Stability analysis of three-layered piezoelectric doubly curved nano shell with accounting size dependency is performed in this paper based on first order shear deformation theory and curvilinear coordinate system relations. The elastic core is integrated with sensor and actuator layers subjected to applied electric potentials. The principle of virtual work is employed for derivation of governing equations of stability. The critical electrical and mechanical buckling loads are evaluated in terms of important parameters of the problem such as size-dependent parameter, two principle angle of doubly curved shell and two parameters of Pasternak's foundation. One can conclude that mechanical buckling loads are decreased with increase of nonlocal parameter while the electrical buckling loads are increased.

키워드

참고문헌

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피인용 문헌

  1. Frequency and thermal buckling information of laminated composite doubly curved open nanoshell vol.10, pp.1, 2020, https://doi.org/10.12989/anr.2021.10.1.001