Stacking sequence optimization of laminated composite grid plates for maximum buckling load using genetic algorithm

Ehsani, Amir; Rezaeepazhand, Jalil

doi:10.1016/j.ijmecsci.2016.09.028

Cited by 61 publications

(29 citation statements)

References 24 publications

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“…Where [T ] and [Q] are the transformation and reduced stiffness matrices 24 . Depending on the isogrid geometry, the elements of reduced stiffness matrix can be achieved using the following equations 19,25 :…”

Section: Constitutive Equationsmentioning

confidence: 99%

Influence of employing laminated isogrid configuration on mechanical behavior of grid structures

Ehsani

Dalir

2019

Journal of Reinforced Plastics and Composites

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For a long time, a single grid layer, such as isogrid, have been utilized to strengthen a shell or plate or as an independent structural member for various applications. Laminated grid structures consist of several grid layers, that can have different in-plane orientations or can be made from different materials. Therefore, using laminated configuration instead of conventional grids yields to an extensive variety of configurations with different coupling effects and cost. In the current paper, to evaluate the appropriateness of laminated isogrids, the vibration and stability behaviors of a conventional isogrid are compared with corresponding laminated isogrid plate. The first-order shear deformation plate theory as well as the Ritz theorem is utilized to achieve the critical buckling loads and free vibration frequencies of the plates. The influence of increasing the number of isogrid plies and changing pattern geometries on mechanical behaviors of the laminated isogrid plate are also investigated. The results imply, utilization of the laminated isogrids remarkably enhances the buckling load and free vibration frequency values of the plates.

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Section: Constitutive Equationsmentioning

confidence: 99%

Influence of employing laminated isogrid configuration on mechanical behavior of grid structures

Ehsani

Dalir

2019

Journal of Reinforced Plastics and Composites

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“…Le-Manh and Lee [23] dealt with stacking sequence optimization for the maximum strength of laminated composite plates using GA. Ehsani and Rezaeepazhand [24] solved the same optimization of laminated composite grid plates for maximum buckling load using GA. Ho-Huu and others [25] optimized laminated composite plates for maximizing buckling load using improved differential evolution.…”

Section: Overview Of Literature On Plate Stacking Optimizationmentioning

confidence: 99%

Comparative Study on Search Performance between GA and PSO for Stacking Optimization of Laminated Plates

Innami¹,

Narita

2018

EPI-IJE

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This paper deals with the optimization problem to maximize the vibration performance of laminated composite plates by properly tailoring the fiber orientation angles in the layers. The optimization is performed by using two metaheuristic methods, Genetic Algorithm (GA) and Particle Swarm Optimization (PSO), and comparison is made to evaluate differences in search performance of the two methods. Test problems are set for the evaluation of maximizing the fundamental frequencies, and some parameters are properly tuned for efficient solution search. From the numerical experiments, it turned out that the search using PSO indicates faster convergence and better solutions than GA scheme under assumption of search domain in real number.

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“…The angle configurations concern tapes and fabrics used to produce laminates. Lately, the usage of different angles, such as ±30°, ±60° [ 2 , 3 , 4 , 5 , 6 , 7 , 8 , 9 , 10 , 11 ], has been debated. In the case of tubes and pressure vessels, the angle of fibre location (depending on the target strength properties) is determined to the nearest 1°.…”

Section: Introductionmentioning

confidence: 99%

Optimisation of the Thin-Walled Composite Structures in Terms of Critical Buckling Force

Szklarek

Gajewski

2020

Materials

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The paper presents the optimisation of thin-walled composite structures on a representative sample of a thin-walled column made of carbon laminate with a channel section-type profile. The optimisation consisted of determining the configuration of laminate layers for which the tested structure has the greatest resistance to the loss of stability. The optimisation of the layer configuration was performed using two methods. The first method, divided into two stages to reduce the time, was to determine the optimum arrangement angle in each laminate layer using finite element methods (FEM). The second method employed artificial neural networks for predicting critical buckling force values and the creation of an optimisation tool. Artificial neural networks were combined into groups of networks, thereby improving the quality of the obtained results and simplifying the obtained neural networks. The results from computations were verified against the results obtained from the experiment. The optimisation was performed using ABAQUS® and STATISTICA® software.

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Stacking sequence optimization of laminated composite grid plates for maximum buckling load using genetic algorithm

Cited by 61 publications

References 24 publications

Influence of employing laminated isogrid configuration on mechanical behavior of grid structures

Influence of employing laminated isogrid configuration on mechanical behavior of grid structures

Comparative Study on Search Performance between GA and PSO for Stacking Optimization of Laminated Plates

Optimisation of the Thin-Walled Composite Structures in Terms of Critical Buckling Force

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