2020
DOI: 10.3390/molecules25215085
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Quasi-3D Hyperbolic Shear Deformation Theory for the Free Vibration Study of Honeycomb Microplates with Graphene Nanoplatelets-Reinforced Epoxy Skins

Abstract: A novel quasi-3D hyperbolic shear deformation theory (QHSDT) with five unknowns is here employed, together with the Hamilton’s principle and the modified couple stress theory (MCST) to analyze the vibrational behavior of rectangular micro-scale sandwich plates resting on a visco-Pasternak foundation. The sandwich structure features a Nomex or Glass phenolic honeycomb core, and two composite face sheets reinforced with graphene nanoplatelets (GPLs). The effective properties of both face sheets are evaluated by … Show more

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Cited by 31 publications
(4 citation statements)
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“…The hydrothermal preparation process is illustrated in Figure 1 for rGOA-200. The procedure involved three main steps: (1) sonication to obtain a 10 mg·L −1 IGGO precursor dispersion (pH = 7.0); (2) partial hydrothermal reduction of oxygen-containing functional groups distributed on the IGGO surface and promotion of rGO sheet self-assembly into the rGO hydrogel; (3) lyophilization to minimize the capillary force and achieve the rGOA three-dimensional (3D) network structure [ 27 , 28 , 29 ]. The hydrothermal synthesis temperature was believed to be a significant factor affecting the textural properties and hydrophobicity of rGOA materials [ 27 , 30 , 31 , 32 ].…”
Section: Resultsmentioning
confidence: 99%
“…The hydrothermal preparation process is illustrated in Figure 1 for rGOA-200. The procedure involved three main steps: (1) sonication to obtain a 10 mg·L −1 IGGO precursor dispersion (pH = 7.0); (2) partial hydrothermal reduction of oxygen-containing functional groups distributed on the IGGO surface and promotion of rGO sheet self-assembly into the rGO hydrogel; (3) lyophilization to minimize the capillary force and achieve the rGOA three-dimensional (3D) network structure [ 27 , 28 , 29 ]. The hydrothermal synthesis temperature was believed to be a significant factor affecting the textural properties and hydrophobicity of rGOA materials [ 27 , 30 , 31 , 32 ].…”
Section: Resultsmentioning
confidence: 99%
“…Furthermore, for the honeycomb layer, the stress components σij(2) are given by [ 30 ] left{σ1σ2σ3σ4σ5σ6}(2)=[trueQ¯11trueQ¯12trueQ¯13000trueQ¯12trueQ¯22trueQ¯23000trueQ¯13trueQ¯23trueQ¯33000000trueQ¯44000000trueQ¯55000000trueQ¯66](2){ε1ε2ε3ε4ε5ε6}where the elastic coefficients of the honeycomb core are given as [ 54 ] …”
Section: Mathematical Analysismentioning
confidence: 99%
“…Using first-order shear deformation theory (FSDT), Afshari [36,37] presented semi-analytical solutions for GPLreinforced non-rotating and rotating truncated conical shells. Arshid et al [38] studied the free vibrational characteristics of rectangular sandwich microplates consisted of a honeycomb core and two GPL-reinforced composite face sheets. They presented a parametric study to investigate the effects of dimensional parameters of the GPLs and geometrical parameters of the honeycomb core on the natural frequencies.…”
Section: Introductionmentioning
confidence: 99%