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PurposeThis paper is the first attempt, to the best of the authors' knowledge, to examine the non-linear blast-induced dynamic responses of functionally graded graphene platelets-reinforced composite (FG-GPLRC) porous cylindrical panels in thermal environments.MethodsThe mechanical properties of porous FG-GPLRC, including the modulus of elasticity, mass density, coefficients of thermal expansion, and Poisson's ratio, are determined by using the Halpin-Tsai micromechanical model, the extended rule of mixtures, and the open-cell metal foam model. The first-order shear deformation theory, the von Karman geometric non-linearity, and the standard Lagrange equations are applied to derive the equations governing the motion the FG-GPLRC porous cylindrical panels. Navier's solution is used to model the immovable and simply supported boundary conditions of the cylindrical panels. The Newmark-beta scheme for direct integration and the Newton-Raphson iterative technique were used to obtain the non-linear dynamic responses of the FG-GPLRC porous cylindrical panels when they were subjected to various blast-induced loads in a thermal environment.Results and ConclusionsA parametric study is performed and indicates that the dependence of the properties of the material on the temperature influenced both the matrix and the GPLs, and thus had a significant influence on the non-linear dynamic responses of the structure. Enhanced structural performance can be achieved by either dispersing more GPLs, or introducing denser pores near the upper and lower surfaces of the structure.
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JOURNAL OF VIBRATION ENGINEERING & TECHNOLOGIES
ISSN: 2523-3920
年份: 2024
期: 4
卷: 12
页码: 6169-6183
2 . 7 0 0
JCR@2022
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