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Geomechanics and Engineering Volume 40, Number 3, February10 2025 , pages 183-191 DOI: https://doi.org/10.12989/gae.2025.40.3.183 |
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Nonlinear snap-buckling of graphene platelet reinforced metal foams doubly curved shells with geometric imperfection |
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Gui-Lin She, Lei-Lei Gan and Jia-Qin Xu
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| Abstract | ||
| In this paper, the nonlinear bending of graphene platelet reinforced metal foams (GPLRMF) doubly curved shells is analyzed. Based on the Reddy' higher-order shear deformation theory, the nonlinear equations of motion are obtained by using Hamilton's principle, which are solved by utilizing assuming modal method and Newton-Raphson approach. In the end, the parameters are systematically studied to illustrate the effects of porosity coefficient, geometric imperfections, graphene platelets (GPLs) mass fraction, GPLs and pore distribution types on the nonlinear bending characteristics of GPLRMF doubly curved shells. It can be found that these parameters have a significant impact on this issue. | ||
| Key Words | ||
| doubly curved shell; metal foams; nonlinear bending; snap-buckling | ||
| Address | ||
| Gui-Lin She, Lei-Lei Gan and Jia-Qin Xu: College of Mechanical and Vehicle Engineering, Chongqing University, Chongqing 400044, China | ||