Optimal lay-up of hybrid composite beams, plates and shells using cellular genetic algorithm

Rajasekaran, S.; Nalinaa, K.; Greeshma, S.; Poornima, N.S.; Kumar, V. Vinoop

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자료유형: 학술저널

저자정보: Rajasekaran, S. (Department of Civil Engineering, PSG College of Technology) Nalinaa, K. (Department of Civil Engineering, PSG College of Technology) Greeshma, S. (Department of Civil Engineering, PSG College of Technology) Poornima, N.S. (Department of Civil Engineering, PSG College of Technology) Kumar, V. Vinoop (Department of Civil Engineering, PSG College of Technology)

저널정보: 테크노프레스 Structural engineering and mechanics : An international journal Structural engineering and mechanics : An international journal 제16권 제5호

발행연도: 2003.1

수록면: 557 - 580 (24page)

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Laminated composite structures find wide range of applications in many branches of technology. They are much suited for weight sensitive structures (like aircraft) where thinner and lighter members made of advanced fiber reinforced composite materials are used. The orientations of fiber direction in layers and number of layers and the thickness of the layers as well as material of composites play a major role in determining the strength and stiffness. Thus the basic design problem is to determine the optimum stacking sequence in terms of laminate thickness, material and fiber orientation. In this paper, a new optimization technique called Cellular Automata (CA) has been combined with Genetic Algorithm (GA) to develop a different search and optimization algorithm, known as Cellular Genetic Algorithm (CGA), which considers the laminate thickness, angle of fiber orientation and the fiber material as discrete variables. This CGA has been successfully applied to obtain the optimal fiber orientation, thickness and material lay-up for multi-layered composite hybrid beams plates and shells subjected to static buckling and dynamic constraints.

#cellular automata #composites #genetic algorithm #optimisation #buckling load #frequency

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