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Advances in Nano Research Volume 16, Number 6, June 2024 , pages 601-613 DOI: https://doi.org/10.12989/anr.2024.16.6.601 |
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Scale-dependent buckling of embedded thermo-electro-magneto-elastic cylindrical nano-shells with different edge conditions |
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Yifei Gui and Honglei Hu
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| Abstract | ||
| A new analytical buckling solution of a thermo-electro-magneto-elastic (TEME) cylindrical nano-shell made of BiTiO3-CoFe2O4 materials is obtained based on Hamiltonian approach. The Winkler and Pasternak elastic foundations as well as thermo-electro-magneto-mechanical loadings are applied, and two different types of edge conditions are taken into the investigation. According to nonlocal strain gradient theory (NSGT) and surface elasticity theory in conjunction with the Kirchhoff-Love theory, governing equations of the nano-shell are acquired, and the buckling bifurcation condition is obtained by adopting the Navier's method. The detailed parameter study is conducted to investigate the effects of axial and circumferential wave numbers, scale parameters, elastic foundations, edge conditions and thermo-electro-magnetic loadings on the buckling behavior of the nano-shell. The proposed model can be applied in design and analysis of TEME nano components with multi-field coupled behavior, multiple edge conditions and scale effect. | ||
| Key Words | ||
| buckling; elastic foundations; TEME cylindrical nano-shell; thermo-electro-magneto-mechanical loadings | ||
| Address | ||
| Yifei Gui and Honglei Hu: School of Mechanical Engineering, Shanghai DianJi University, Shanghai, China | ||