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http://dx.doi.org/10.15683/kosdi.2020.12.31.832

Isogeometric Analysis of FGM Plates in Combination with Higher-order Shear Deformation Theory  

Jeon, Juntai (Department of Civil&Environmental Engineering, Inha Technical College)
Publication Information
Journal of the Society of Disaster Information / v.16, no.4, 2020 , pp. 832-841 More about this Journal
Abstract
Purpose: This study attempts at analyzing mechanical response of functionally graded material (FGM) plates in bending. An accurate and effective numerical approach based on isogeometric analysis (IGA) combined with higher-order shear deformation plate theory to predict the nonlinear flexural behavior is developed. Method: A higher-order shear deformation theory(HSDT) which accounts for the geometric nonlinearity in the von Karman sense is presented and used to derive the equilibrium and governing equations for FGM plate in bending. The nonlinear equations are solved by the modified Newton-Raphson iterative technique. Result: The volume fraction, plate length-to-thickness ratio and boundary condition have signifiant effects on the nonlinear flexural behavior of FGM plates. Conclusion: The proposed IGA method can be used as an accurate and effective numerical tool for analyzing the mechanical responses of FGM plates in flexure.
Keywords
Functionally Graded Material Plate; Bending; Isogeometric Analysis; Non-uniform Rational B-splines (NURBS); Higher-order Shear Deformation Theory;
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