On the vibration of functionally graded annular plate with elastic edge supports and resting on Winkler foundation

Hashemi, Soheil; Zamani, Farshad; Eftekhari, Arash; Rostamiyan, Yasser; Khaledi, Himan; Abadi, Mohamadreza Rajabi Reza

doi:10.1080/14484846.2021.1918868

Cited by 29 publications

(15 citation statements)

References 33 publications

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“…The weak and strong bonding regions between fiber and matrix are visible in this figure. It can be concluded that the VARTM [ 46 ] is better than the conventional hand lay‐up methods [ 47 ] for composite fabrication. In addition, from the SEM images, it can be determined that nano‐SiO 2 as nano‐fillers have an excellent chemical bending with the epoxy matrices that result in a high elastic modulus of the nanocomposites.…”

Section: Methodsmentioning

confidence: 99%

Experimental investigation of mechanical properties of Kevlar fiber composite sandwich panel with truss core reinforced bynano‐SiO₂

2022

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The present paper addresses the flexural and compressive properties of Kevlar fiber reinforced sandwich panels with a truss core reinforced by nano-SiO 2 . For this purpose, a polymer composite sandwich panel with a truss core made of Kevlar fiber and resin epoxy has been fabricated in this experiment using the vacuum-assisted resin transfer molding method. Afterward, polyurethane foam was injected into the empty space of the sandwich panel. In order to determine the flexural and compressive strength of the composite structures, the sandwich panels have been subjected to three-point bending and compressive load. The main findings were: adding 1 and 3 wt% of nano-SiO 2 into the Kevlar fiber had the most desirable effects on the enhancement of flexural and compressive strength of the sandwich panels, polyurethane foam has improved the mechanical strength of sandwich panels, and the novel lozenge core can well postpone the buckling and failure of the composite sandwich structures.

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Section: Methodsmentioning

confidence: 99%

Experimental investigation of mechanical properties of Kevlar fiber composite sandwich panel with truss core reinforced bynano‐SiO₂

2022

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“…Sandwich panels are widely used in various applications, including transportation, automotive, ship industries, civil infrastructures, wind turbine blades, owing to their extraordinary mechanical properties and multifunctional design ability. A typical sandwich panel is often manufactured by bonding two thin, stiff, and robust plates [1][2][3][4][5][6][7] to both sides of a thick lightweight core. Skins are frequently made of metal alloys and fiber-reinforced polymers (e.g., CFRP [carbon fiber reinforced polymer] and GFRP [glass fiber reinforced polymer]) to bear flexural and compressive loads.…”

Section: Introductionmentioning

confidence: 99%

Experimental and numerical investigation of high‐velocity impact effects on composite sandwich panel with M‐shaped core reinforced by nano‐SiO₂

2022

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This article has experimentally and numerically investigated the high‐velocity impact resistance of the composite sandwich panel with an M‐shaped lattice core reinforced by nano‐SiO2. For this purpose, firstly, a glass fiber resin epoxy sandwich panel has been fabricated in the laboratory. In this regard, the vacuum‐assisted resin transfer molding (VARTM) method has been used to achieve a laminate without any fault. In order to improve the impact resistance of the composite, the nano‐SiO2 were added to the resin epoxy matrix as filler with the ratios of 1%, 2%, and 3% of the composite's total weight. A scanning electron microscope (SEM) has been utilized to observe the microscopic structure of the composites, and it shows an exceptional homogeneous mixture of nano‐SiO2 particles in the resin epoxy matrix. From the experiment results, it was figured out that by adding 1 to 3 wt% of nano‐SiO2 into the composite, the output velocity of the projectile decreases. On the other hand, the results showed that when the projectile collides with the core of the sandwich panel, it remains in the sandwich panel and its output velocity will be zero. However, when the projectile does not completely collide with the core, the output velocity of the projectile will not be zero. In order to validate the results, a finite element analysis (FEA) has been developed to simulate the high‐velocity impact test. Then the experimental data has been compared to numerical simulation and good agreement was observed.

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“…Correspondingly, large quantities of research have been performed on the vibration and dynamic behavior of continuous structures such as plates. 2–8 Some researchers have specifically worked on the vibration characteristics of the composite sandwich panels, some of which are mentioned in this section. Li et al 9 investigated the vibration response of metallic sandwich panels with hourglass truss cores by comparing it with the traditional pyramidal sandwich structure.…”

Section: Introductionmentioning

confidence: 99%

An experimental and numerical study on the vibration characteristics of glass fiber composite sandwich panel with lattice cores

Eratbeni

Azadi

Seyyedi

2022

Proceedings of the Institution of Mechanical Engineers, Part L:

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This research aims to design, manufacture, and determine the vibration characteristics of a composite sandwich panel with lattice cores. For this purpose, first, a glass fiber sandwich panel with lattice truss core has been fabricated in the laboratory. In this part, the vacuum-assisted resin transfer molding method has been used to achieve laminates without any porosity. Afterward, the modal tests have been performed to obtain the natural frequencies, shape modes, damping ratio, and frequency responses of the sandwich panel. In addition, a finite element analysis has been developed to calculate the natural frequencies, damping ratio, and mode shapes of the composite sandwich panel. Then the experimental data have been compared to numerical simulation, and good agreement has been found.

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On the vibration of functionally graded annular plate with elastic edge supports and resting on Winkler foundation

Cited by 29 publications

References 33 publications

Experimental investigation of mechanical properties of Kevlar fiber composite sandwich panel with truss core reinforced bynano‐SiO₂

Experimental investigation of mechanical properties of Kevlar fiber composite sandwich panel with truss core reinforced bynano‐SiO₂

Experimental and numerical investigation of high‐velocity impact effects on composite sandwich panel with M‐shaped core reinforced by nano‐SiO₂

An experimental and numerical study on the vibration characteristics of glass fiber composite sandwich panel with lattice cores

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On the vibration of functionally graded annular plate with elastic edge supports and resting on Winkler foundation

Cited by 29 publications

References 33 publications

Experimental investigation of mechanical properties of Kevlar fiber composite sandwich panel with truss core reinforced bynano‐SiO2

Experimental investigation of mechanical properties of Kevlar fiber composite sandwich panel with truss core reinforced bynano‐SiO2

Experimental and numerical investigation of high‐velocity impact effects on composite sandwich panel with M‐shaped core reinforced by nano‐SiO2

An experimental and numerical study on the vibration characteristics of glass fiber composite sandwich panel with lattice cores

Contact Info

Product

Resources

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Experimental investigation of mechanical properties of Kevlar fiber composite sandwich panel with truss core reinforced bynano‐SiO₂

Experimental investigation of mechanical properties of Kevlar fiber composite sandwich panel with truss core reinforced bynano‐SiO₂

Experimental and numerical investigation of high‐velocity impact effects on composite sandwich panel with M‐shaped core reinforced by nano‐SiO₂