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Materials 2019, 12(8), 1262; https://doi.org/10.3390/ma12081262

Research on the Buckling Behavior of Functionally Graded Plates with Stiffeners Based on the Third-Order Shear Deformation Theory

1
Modeling Evolutionary Algorithms Simulation and Artificial Intelligence, Faculty of Electrical & Electronics Engineering, Ton Duc Thang University, Ho Chi Minh City 700000, Vietnam
2
Training Department, Le Quy Don Technical University, Hanoi City 100000, Vietnam
3
Faculty of Mechanical Engineering, Le Quy Don Technical University, Hanoi City 100000, Vietnam
4
Center of Excellence for Automation and Precision Mechanical Engineering, Nguyen Tat Thanh University, Ho Chi Minh City 700000, Vietnam
*
Authors to whom correspondence should be addressed.
Received: 19 March 2019 / Revised: 8 April 2019 / Accepted: 10 April 2019 / Published: 17 April 2019
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Abstract

This paper presents a finite element formulation to study the mechanical buckling of stiffened functionally graded material (FGM) plates. The approach is based on a third-order shear deformation theory (TSDT) introduced by Guangyu Shi. The material properties of the plate were assumed to be varied in the thickness direction by a power law distribution, but the material of the stiffener was the same as that of the one of the bottom surface where the stiffener was placed. A parametric study was carried out to highlight the effect of material distribution, the thickness-to-width ratio, and stiffener parameters on the buckling characteristics of the stiffened FGM plates. Numerical results showed that the addition of stiffener to the FGM plate could significantly reduce the weight of the FGM plate but that both the FGM plates with and without stiffener had equally high strength in the same boundary condition and compression loading. View Full-Text
Keywords: buckling; FGM; stiffener; FEM; third-order shear deformation theory buckling; FGM; stiffener; FEM; third-order shear deformation theory
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Nguyen, H.-N.; Tan, T.C.; Luat, D.T.; Phan, V.-D.; Thom, D.V.; Minh, P.V. Research on the Buckling Behavior of Functionally Graded Plates with Stiffeners Based on the Third-Order Shear Deformation Theory. Materials 2019, 12, 1262.

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