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Nonlinear thermo-mechanical static and dynamic buckling responses of functionally graded porous graphene-reinforced spherical shells and circular plates with spider-web stiffeners.

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Title: Nonlinear thermo-mechanical static and dynamic buckling responses of functionally graded porous graphene-reinforced spherical shells and circular plates with spider-web stiffeners.
Authors: Hoai Nam, Vu1 (AUTHOR), Thi Thanh Hoai, Nguyen2,3 (AUTHOR), Van Tien, Nguyen1 (AUTHOR), Thanh Hieu, Pham1 (AUTHOR), Thi Phuong, Nguyen4,5 (AUTHOR) nguyenthiphuong@tdtu.edu.vn
Source: Journal of Thermoplastic Composite Materials. Feb2026, Vol. 39 Issue 2, p702-732. 31p.
Subjects: Graphene, Spherical shells (Engineering), Structural components, Functionally gradient materials, Thermoelastic stress analysis, Mechanical buckling, Stiffners
Abstract: This paper presents a semi-analytical approach to investigate the nonlinear static and dynamic buckling responses of functionally graded porous graphene-reinforced spherical shells and circular plates with spider-web stiffeners and piezoelectric layer under mechanical and thermal loads. Graphene and porosity are designed to be continuously varied in the thickness direction of plates and shells. By applying the energy method, the equilibrium and motion equations for spider-web stiffened plates and shells are derived by using the improved smeared stiffener technique and the nonlinear Donnell shell theory, taking into account the geometrical imperfection. The resulting equations are solved to obtain explicit expressions for static buckling and postbuckling responses, and numerical results for dynamic responses. Static and dynamic buckling analysis of the considered structures shows the effects of the graphene, porosity, stiffeners, and other input parameters on the static and dynamic buckling behavior of plates and shells. [ABSTRACT FROM AUTHOR]
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Database: Engineering Source
Description
Abstract:This paper presents a semi-analytical approach to investigate the nonlinear static and dynamic buckling responses of functionally graded porous graphene-reinforced spherical shells and circular plates with spider-web stiffeners and piezoelectric layer under mechanical and thermal loads. Graphene and porosity are designed to be continuously varied in the thickness direction of plates and shells. By applying the energy method, the equilibrium and motion equations for spider-web stiffened plates and shells are derived by using the improved smeared stiffener technique and the nonlinear Donnell shell theory, taking into account the geometrical imperfection. The resulting equations are solved to obtain explicit expressions for static buckling and postbuckling responses, and numerical results for dynamic responses. Static and dynamic buckling analysis of the considered structures shows the effects of the graphene, porosity, stiffeners, and other input parameters on the static and dynamic buckling behavior of plates and shells. [ABSTRACT FROM AUTHOR]
ISSN:08927057
DOI:10.1177/08927057251355139