Effect of Silicon dioxide (cas 112945-52-5) substrate on buckling behavior of Zinc Oxide nanotubes via size-dependent continuum theories

Add time:07/31/2019    Source:sciencedirect.com

This paper aims to highlight the effect of SiO2 substrate on the buckling behavior of Zinc Oxide (ZnO) nanotube. ZnO nanotube is modeled in various length and diameter to show the effect of size on buckling loads. Silicon dioxide (cas 112945-52-5) (SiO2) is the material on which Zinc Oxide (ZnO) is grown and used as gas/chemical sensor. In present paper, SiO2 substrate is modeled as two parameters elastic layer. In order to consider the elastic substrate, Winkler and Pasternak foundation models are used. Different values of elastic foundation parameters are taken into consideration to see the effect of these parameters on buckling loads of Zinc Oxide (ZnO) nanowire. Additionally, to take the size effect into consideration on calculating buckling loads, nonlocal elasticity, surface elasticity, modified couple stress, modified strain gradient theories are used. Some benchmark results have been depicted. Some detailed results are also given and compared in figures and tables.

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