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Steel and Composite Structures Volume 36, Number 1, July 10 2020 , pages 63-74 DOI: https://doi.org/10.12989/scs.2020.36.1.063 |
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Post-buckling analysis of geometrically imperfect tapered curved micro-panels made of graphene oxide powder reinforced composite |
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Seyed Sajad Mirjavadi, Masoud Forsat, Mohammad Reza Barati and AMS Hamouda
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| Abstract | ||
| The present research investigates post-buckling behavior of geometrically imperfect tapered curved micro-panels made of graphene oxide powder (GOP) reinforced composite. Micro-scale effects on the panel structure have been included based on strain gradient elasticity. Micro-panel is considered to be tapered based on thickness variation along longitudinal direction. Weight fractions of uniformly and linearly distributed GOPs are included in material properties based on Halpin-Tsai homogenization scheme considering. Post-buckling curves have been determined based on both perfect and imperfect micro-panel assumptions. It is found that post-buckling curves are varying with the changes of GOPs weight fraction, geometric imperfection, GOP distribution type, variable thickness parameters, panel curvature radius and strain gradient. | ||
| Key Words | ||
| Post-buckling; cylindrical shell; strain gradient theory; nano-composite material; curved panel | ||
| Address | ||
| Seyed Sajad Mirjavadi,Masoud Forsat and AMS Hamouda: Department of Mechanical and Industrial Engineering, Qatar University, P.O. Box 2713, Doha, Qatar; Mohammad Reza Barati: Fidar project Qaem Company, Darvazeh Dolat, Tehran, Iran | ||