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- W3095373414 abstract "This paper is focused on predicting the natural frequency of a simply-supported, functionally-graded material (FGM) plate with even porosity distribution and a side surface crack. First, an analytical solution is obtained for the free vibration of a simply-supported porous FGM plate. The power law is used to describe the material properties of the porous FGM plate through the thickness. Hamilton's principle is used to derive the equations of motion of the FGM plate with third-order shear deformation plate theory. Navier's solution is used to solve the problem. The effects of porosity and material distribution parameters on the natural frequency of the FGM plate are discussed. Then, the results obtained from this study are validated and compared with results available in literature. Second, the Artificial Neural Network (ANN) technique is used to predict the natural frequency variations of porous FGM plates with a side surface crack, based on more than 2,500 data points collected from the analytical solution obtained in this paper as well as some from existing literature. The ANN technique allows for investigation of the effects of various parameters, including plate characteristics, material properties, geometric details, crack location, and porosity distribution. Finally, by performing both network and computational analysis, it is proven that porosity distribution in the presence of cracks affects the natural frequency of the FGM plates. For the first time, accurate, non-dimensional frequency data are provided for simply–supported, cracked, porous Al/Al2O3 and Si3N4/SUS304 FGM plates. The ANN model shows that it is a powerful technique capable of handling a large database, various key parameters, and material nonlinearity." @default.
- W3095373414 created "2020-11-09" @default.
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- W3095373414 date "2020-12-01" @default.
- W3095373414 modified "2023-10-11" @default.
- W3095373414 title "Free vibration of functionally-graded porous cracked plates" @default.
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- W3095373414 doi "https://doi.org/10.1016/j.istruc.2020.10.059" @default.
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