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Advances in Nano Research Volume 12, Number 6, June 2022 , pages 593-603 DOI: https://doi.org/10.12989/anr.2022.12.6.593 |
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Thermal buckling resistance of a lightweight lead-free piezoelectric nanocomposite sandwich plate |
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Kamran Behdinan and Rasool Moradi-Dastjerdi
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| Abstract | ||
| The critical buckling temperature rise of a newly proposed piezoelectrically active sandwich plate (ASP) has been investigated in this work. This structure includes a porous polymeric layer integrated between two piezoelectric nanocomposite layers. The piezoelectric material is made of a passive polymeric material that is activated by lead-free nanowires (NWs) of zinc oxide (ZnO) embedded inside the matrix. In both nanocomposite layers and porous core, functional graded (FG) patterns have been considered for the distributions of ZnO NWs and voids, respectively. By adopting a higher-order theory of plates, the governing equations of thermal buckling are obtained. This set of equations is then treated using an extended mesh-free solution. The effects of plate dimensions, porosity states, and the nanowire parameters have been investigated on the critical buckling temperature rises of the proposed lightweight ASPs with different boundary conditions. The results disclose that the use of porosities in the core and/or mixing ZnO NWs in the face sheets substantially arise the critical buckling temperatures of the newly proposed active sandwich plates. | ||
| Key Words | ||
| active sandwich plates; piezoelectric nanocomposite; porous material; thermal buckling; zinc oxide nanowires | ||
| Address | ||
| Kamran Behdinan and Rasool Moradi-Dastjerdi: Advanced Research Laboratory for Multifunctional Lightweight Structures (ARL-MLS), Department of Mechanical & Industrial Engineering, University of Toronto, Toronto, Canada | ||