Effect of foam structure on thermo-mechanical buckling of foam core sandwich nanoplates with layered face plates made of functionally graded material (FGM)

Yıldız, Tuğçe; Esen, Ismail

doi:10.1007/s00707-023-03722-z

Cited by 14 publications

(1 citation statement)

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“…The vibration characteristics of porous FG micro/nanobeams considering various types of thermal loadings have been discussed by [34] based on MCST and also the effects of various parameters, like porosity-volume fraction, thermal loadings, slenderness ratio, material grading index or power-law exponent in some literature [35], scale parameter and various boundary conditions on natural frequencies of the modeled beam has been examined. The effects of porosity, magnetic potential, elastic foundation, magnetic potential, scale coefficient, applied voltage, slenderness ratio and material gradation on the vibrational behavior of the magneto-electro elastic functionally graded (MEE-FG) nanoscale beams and plates have been examined by [36][37][38][39] through third-order shear deformation beam model derived from NET. To derive the nonlocal equations, Hamilton's principle has been used and they have been solved analytically in this work.…”

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confidence: 99%

Thermomechanical Response of Smart Magneto-Electro-Elastic FGM Nanosensor Beams with Intended Porosity

Pehlivan,

Esen,

Aktas

2024

Arab J Sci Eng

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This study investigates the behavior of free vibrations in a variety of porous functionally graded nanobeams composed of ferroelectric barium-titanate (BaTiO3) and magnetostrictive cobalt-ferrite (CoFe2O4). There are four different models of porous nanobeams: the uniform porosity model (UPM), the symmetric porosity model (SPM), the porosity concentrated in the bottom region model (BPM), and the porosity concentrated in the top region model (TPM). The nanobeam constitutive equation calculates strains based on various factors, including classical mechanical stress, thermal expansion, magnetostrictive and electroelastic properties, and nonlocal elasticity. The study investigated the effects of various factors on the free vibration of nanobeams, including thermal stress, thermo-magneto-electroelastic coupling, electric and magnetic field potential, nonlocal features, porosity models, and changes in porosity volume. The temperature-dependent mechanical properties of BaTiO3 and CoFe2O4 have been recently explored in the literature for the first time. The dynamics of nanosensor beams are greatly influenced by temperature-dependent characteristics. As the ratios of CoFe2O4 and BaTiO3 in the nanobeam decrease, the dimensionless frequencies decrease and increase, respectively, based on the material grading index. The dimensionless frequencies were influenced by the nonlocal parameter, external electric potential, and temperature, causing them to rise. On the other hand, the slenderness ratio and external magnetic potential caused the frequencies to drop. The porosity volume ratio has different effects on frequencies depending on the porosity model.

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