T. Nguyen-Thoi

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Keywords: Numerical methods Meshfree methods Finite element method (FEM) Alpha finite element method (aFEM) Node-based smoothed finite element method (NS-FEM) Solution bounds Superconvergence Strain construction methods a b s t r a c t A carefully designed procedure is presented to modify the piecewise constant strain field of linear triangular FEM models,(More)
Keywords: Smoothed finite element methods (S-FEM) Eccentricity Stiffened plate Finite element method (FEM) Cell-based smoothed discrete shear gap method (CS-DSG3) Triangular elements a b s t r a c t The paper presents the static, free vibration and buckling analyses of eccentrically stiffened plates by the cell-based smoothed discrete shear gap method(More)
Structural optimization with frequency constraints is well known as a highly nonlinear and complex optimization problem with many local optimum solutions. Therefore, to solve such problems effectively, designers need to use adequate optimization methods which can make a good balance between the computational cost and the quality of solutions. In this work,(More)
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Keywords: (l + k) Improved differential evolution (IDE) Archiving-based adaptive tradeoff model (ArATM) Improved (l + k) constrainted differential evolution (ICDE) Discrete-ICDE (D-ICDE) Discrete variables Truss layout optimization a b s t r a c t Recently, an improved (l + k) constrainted differential evolution (ICDE) has been proposed and proven to be(More)