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Boussad Abbès,Mohammed Amine Benhenni,Tahar Hassaine Daouadji,Fazilay Abbès,Belkacem Adim,Yuming Li 국제구조공학회 2019 Structural Engineering and Mechanics, An Int'l Jou Vol.70 No.5
This study aimed to develop a high-order shear deformation theory to predict the free vibration of hybrid cross-ply laminated plates under different boundary conditions. The equations of motion for laminated hybrid rectangular plates are derived and obtained by using Hamilton’s principle. The closed-form solutions of anti-symmetric cross-ply and angle-ply laminates are obtained by using Navier’s solution. To assess the validity of our method, we used the finite element method. Firstly, the analytical and the numerical implementations were validated for an antisymmetric cross-ply square laminated with available results in the literature. Then, the effects of side-to-thickness ratio, aspect ratio, lamination schemes, and material properties on the fundamental frequencies for different combinations of boundary conditions of hybrid composite plates are investigated. The comparison of the analytical solutions with the corresponding finite element simulations shows the good accuracy of the proposed analytical closed form solution in predicting the fundamental frequencies of hybrid cross-ply laminated plates under different boundary conditions.
Numerical modeling of hygrothermal effect on the dynamic behavior of hybrid composite plates
Mohamed A. Ben Henni,Boussad Abbès,T. Hassaine Daouadji,Fazilay Abbès,Belkacem Adim 국제구조공학회 2021 Steel and Composite Structures, An International J Vol.39 No.6
In this work, the hygrothermal effect on the behavior of hybrid laminated composite plate has been investigated using high-order shear deformation theory and finite element analysis. The equation of motion of the laminated plate is obtained using Hamilton's principle, and the mathematical expressions are obtained using Navier's solution for different boundary conditions. The engineering moduli for the different cases: non-hybrid composite and hybrid composite are calculated using the law of mixtures. The mechanical properties of hybrid composite plate are considered as temperature and humidity dependent. The results obtained with finite element analysis using Abaqus and analytical approach show a good agreement in predicting the fundamental frequencies of hybrid cross-ply laminated plates under hygrothermal loading.
Finite element elastoplastic homogenization model of a corrugated-core sandwich structure
Viet D. Luong,Fazilay Abbès,Minh P. Hoang,Pham T.M. Duong,Boussad Abbès 국제구조공학회 2021 Steel and Composite Structures, An International J Vol.41 No.3
This study aimed to develop an elastoplastic homogenization model to accurately predict the elastoplastic static behavior of a corrugated-core sandwich structure. A panel composed of two planar layers and one corrugated layer is modeled by a homogeneous orthotropic single-layer plate. A plane stress elastoplastic model is adopted to describe the behavior of each layer. Homogenization is achieved by local integration across the thickness of each layer. The proposed homogenization model is implemented in the ABAQUS finite element software using UGENS user subroutine. The results obtained by our model are compared to those obtained by full 3D simulations under different loading conditions. The comparisons show the efficiency and the accuracy of the proposed elastoplastic homogenization model.