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Quasi-3D dynamic analysis of functionally graded auxetic graphene-origami-reinforced plates on viscoelastic foundations under pulse loading
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DOI：10.1016/j.mechrescom.2026.104643.png)
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Abstract
En 中文
The main goal of this study is to introduce a novel finite element framework for analyzing the dynamic response of functionally graded (FG) auxetic plates reinforced with graphene origami (GOri) plates, also known as FGGOEAM plates resting on viscoelastic foundations (VEFs), considering temperature effects. The governing equations are derived from Hamilton's principle. The FG-GOEAM plates are characterized as multilayer systems exhibiting layer-wise variation in GOri content. The formulation is developed using a six-variable quasi-threedimensional (quasi-3D) combined with the finite element method. A mixed Q4 Lagrange-Hermite element is constructed to satisfy C0- and C1-continuity without using shear correction factors. After confirming the model's accuracy and convergence, numerical examples are performed to examine the effects of GOri weight fraction, GOri distribution patterns, the temperature, boundary conditions (BCs), foundations stiffness, and folding degree on free vibration and dynamic responses under pulse loading (PL). The results show that the proposed method accurately captures the dynamic response of FG-GOEAM plates and is a dependable tool for designing, fabricating, and optimizing advanced auxetic structures in civil and aerospace engineering.
Keywords:
GOri
Auxetic honeycomb
Dynamic analysis
FEM
Quasi-3D
Journal
M
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2.3
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115
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