Optimization of Influence Parameters on Thermal Buckling of Hybrid Composite Plates with Cutout Using Genetic Algorithm

Document Type : Research Article

Authors

Faculty of Mechanical Engineering, Shahrood University of Technology

Abstract

Optimization in the design and maintenance of many engineering systems, economic and even social has been used to minimize the cost or maximize profits. In the buckling analysis, the hybrid composite plates with cutout, the effective parameters on buckling are the cutout geometry, fiber angle, cutout size to plate size ratio, bluntness of cutout corners, and rotation angle of cutout. Therefore, in this study, using genetic algorithm method an attempt has been made to introduce the optimum parameters to achieve the Maximum amount of critical buckling temperature of hybrid composite plate with polygonal cutouts in different boundary conditions and stacking sequences, which are subject to uniform temperature rise. The cutouts in this study are circular, pentagonal, and hexagonal. The solving method used to analyze this study is the finite element based on the energy method. Also, the theory used in this paper is the first-order shear deformation theory. The results presented in this case show that by choosing the appropriate shape of cutout and the optimal selection of parameters affecting buckling, the plate’s resistance to thermal buckling can be increased. It was also found that stacking sequences and boundary conditions have a significant effect on the critical buckling temperature of a hybrid composite plate with cutout.

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References

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Amirkabir Journal of Mechanical Engineering
Volume 52, Issue 8
November 2020
Pages 2107-2122

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