Frequency analysis of carbon and silicon nanosheet with surface effects

Gangele, Aparna; Pandey, Ashok Kumar

doi:10.1016/j.apm.2019.06.029

Cited by 5 publications

(3 citation statements)

References 45 publications

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“…When the size of the same specimen decreased, the natural frequencies of the 3DNWCFCs increased. The law of change is as follows 31,32…”

Section: Methodologies Of Creating the Equivalent Small-size Modelmentioning

confidence: 99%

“…Many studies have shown that the size of a material affected the value of the natural frequency. 31,32 The model can be further simplified by scaling down the length, width and thickness of the model at the same proportion. When the size of the same specimen decreased, the natural frequencies of the 3DNWCFCs increased.…”

Section: Finite Element Prediction and Modelingmentioning

confidence: 99%

“…When the size of the same specimen decreased, the natural frequencies of the 3DNWCFCs increased. The law of change is as follows 31,32 where f i is the natural frequency ( i = 1, 2, 3, 4, 5, 6); l , b and h are the length, width and thickness of the specimen, respectively; k i is the coefficient of natural frequency.…”

Section: Finite Element Prediction and Modelingmentioning

confidence: 99%

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Modal analysis of 3D needled waste cotton fiber/epoxy composites with experimental and numerical methods

Fan

Meng

et al. 2020

Textile Research Journal

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The small-size microstructure models of the 3D needled waste cotton fiber/epoxy composites (3DNWCFCs) were brought out to predict their key vibration parameters (natural frequency and mode shapes) with the finite element analysis method. Six kinds of 3DNWCFCs with different parameters were prepared and tested by the experimental modal analysis method to verify the accuracy of the prediction of the natural frequencies and mode shapes with the finite element method. The effects of the fiber volume content and needling density of the composites on the modal behavior were investigated. The natural frequency of the cantilever beams of the composites increased with the increase of the fiber volume content and increased at first then decreased with the increasing needling density. The effect of needling density on the vibration properties of the composite depended on the degree of damage and entanglement of Z-direction fibers. The comparative analysis of the finite element analysis and the experimental results showed that the small-size microstructure models of the 3DNWCFCs were effective to predict their vibration parameters. Therefore, the small-size finite element models can be used to predict the modal properties of the staple fiber reinforced composites effectively with less time and lower economic costs.

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“…When the size of the same specimen decreased, the natural frequencies of the 3DNWCFCs increased. The law of change is as follows 31,32…”

Section: Methodologies Of Creating the Equivalent Small-size Modelmentioning

confidence: 99%

Section: Finite Element Prediction and Modelingmentioning

confidence: 99%