Optimum design of laminated composite plates to maximize buckling load using MFD method

Effects of nonuniform boundary conditions on the buckling load optimization of laminated composite plates

“…(16). The optimization procedure involves the stages of evaluating the buckling load N(h) for a given h and improving the fibre orientation to maximize N. Thus, the computational solution consists of successive stages of analysis and optimization until a convergence is obtained and the optimum angle h opt is determined within a specified accuracy.…”

“…Topal and Uzman [1] investigated the optimal design of laminated plates subjected to the biaxial compressive loads for uniform boundary conditions. The objective function was to maximize the buckling load capacity of the laminated plates and the fibre orientation was considered as design variable.…”

Frequency optimization of laminated general quadrilateral and trapezoidal thin plates

“…Thus, the computational solution consists of successive stages of analysis and optimization until a convergence is obtained and the optimal angle h opt is determined within a specified accuracy. The modified feasible direction method is used in the optimization stage [10][11][12].…”

Frequency optimization of laminated composite angle-ply plates with circular hole

“…The subspace iteration method is used for frequency analysis. Based on the modified feasible direction method [9][10][11], the mathematical expression for such an optimization problem can be written as Maximise :…”

“…A number of examples of the design of symmetrically and antisymmetrically laminated composite plates with various material properties, side-to-thickness ratios, aspect ratios and different numbers of layers were given to illustrate the practical applications of the present method. Topal and Uzman [9] investigated optimal fibre orientations of symmetrically laminated fibre reinforced composite structures for maximising the fundamental frequency of small-amplitude. A set of fibre orientation angles in the layers were considered as design variable.…”