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Structural Engineering and Mechanics Volume 87, Number 1, July10 2023 , pages 85-94 DOI: https://doi.org/10.12989/sem.2023.87.1.085 |
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Thermal post-buckling of graphene platelet reinforced metal foams doubly curved shells with geometric imperfection |
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Jia-Qin Xu and Gui-Lin She
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| Abstract | ||
| In the present work, thermal buckling and post-buckling behaviors of imperfect graphene platelet reinforced metal foams (GPRMFs) doubly curved shells are examined. Material properties of GPRMFs doubly curved shells are presumed to be the function of the thickness. Reddy' shell theory incorporating geometric nonlinearity is utilized to derive the governing equations. Various types of the graphene platelets (GPLs) distribution patterns and doubly curved shell types are taken into account. The nonlinear equations are discretized for the case of simply supported boundary conditions. The thermal postbuckling response are presented to analyze the effects of GPLs distribution patterns, initial geometric imperfection, GPLs weight fraction, porosity coefficient, porosity distribution forms, doubly curved shell types. The results show that these factors have significant effects on the thermal post-buckling problems. | ||
| Key Words | ||
| doubly curved shells; graphene platelet; initial geometrical imperfection; metal foam; thermal post-buckling | ||
| Address | ||
| Jia-Qin Xu and Gui-Lin She: College of Mechanical and Vehicle Engineering, Chongqing University, Chongqing 400044, China | ||