Smart Structures and Systems

  • 제25권6호
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  • Pages.707-717
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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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DOI QR코드

DOI QR Code

Nonlinear stability of smart nonlocal magneto-electro-thermo-elastic beams with geometric imperfection and piezoelectric phase effects

  • Faleh, Nadhim M. (Al-Mustansiriah University, Engineering Collage) ;
  • Abboud, Izz Kadhum (Al-Mustansiriah University, Engineering Collage) ;
  • Nori, Amer Fadhel (Al-Mustansiriah University, Engineering Collage)
  • 투고 : 2019.09.22
  • 심사 : 2020.01.15
  • 발행 : 2020.06.25
⟨ 이전 논문 다음 논문 ⟩

초록

In this paper, analysis of thermal post-buckling behaviors of sandwich nanobeams with two layers of multi-phase magneto-electro-thermo-elastic (METE) composites have been presented considering geometric imperfection effects. Multi-phase METE material is composed form piezoelectric and piezo-magnetic constituents for which the material properties can be controlled based on the percentages of the constituents. Nonlinear governing equations of sandwich nanobeam are derived based on nonlocal elasticity theory together with classic thin beam model and an analytical solution is provided. It will be shown that post-buckling behaviors of sandwich nanobeam in thermo-electro-magnetic field depend on the constituent's percentages. Buckling temperature of sandwich nanobeam is also affected by nonlocal scale factor, magnetic field intensity and electrical voltage.

키워드

과제정보

The authors would like to thank Mustansiriyah university (www.uomustansiriyah.edu.iq) Baghdad-Iraq for its support in the present work.

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