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Steel and Composite Structures Volume 27, Number 3, May10 2018 , pages 297-310 DOI: https://doi.org/10.12989/scs.2018.27.3.297 |
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An efficient procedure for lightweight optimal design of composite laminated beams |
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V. Ho-Huu, T. Vo-Duy, D. Duong-Gia and T. Nguyen-Thoi
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| Abstract | ||
| A simple and efficient numerical optimization approach for the lightweight optimal design of composite laminated beams is presented in this paper. The proposed procedure is a combination between the finite element method (FEM) and a global optimization algorithm developed recently, namely Jaya. In the present procedure, the advantages of FEM and Jaya are exploited, where FEM is used to analyze the behavior of beam, and Jaya is modified and applied to solve formed optimization problems. In the optimization problems, the objective aims to minimize the overall weight of beam; and fiber volume fractions, thicknesses and fiber orientation angles of layers are selected as design variables. The constraints include the restriction on the first fundamental frequency and the boundaries of design variables. Several numerical examples with different design scenarios are executed. The influence of the design variable types and the boundary conditions of beam on the optimal results is investigated. Moreover, the performance of Jaya is compared with that of the well-known methods, viz. differential evolution (DE), genetic algorithm (GA), and particle swarm optimization (PSO). The obtained results reveal that the proposed approach is efficient and provides better solutions than those acquired by the compared methods. | ||
| Key Words | ||
| Jaya algorithm; lightweight design optimization; laminated composite beams; frequency constraints | ||
| Address | ||
| (1) V. Ho-Huu, T. Vo-Duy, D. Duong-Gia, T. Nguyen-Thoi: Division of Computational Mathematics and Engineering, Institute for Computational Science, Ton Duc Thang University, Ho Chi Minh City, Vietnam; (2) V. Ho-Huu, T. Vo-Duy, D. Duong-Gia, T. Nguyen-Thoi: Faculty of Civil Engineering, Ton Duc Thang University, Ho Chi Minh City, Vietnam. | ||