Application of Genetic Algorithms to Stiffness Optimization of Laminated Composite Plates with Stress-Concentrated Open Holes

• TODOROKI Akira

  Department of Mechano-Aerospace Engineering, Tokyo Institute of Technology

• WATANABE Kyu

  Graduate Student of Tokyo Institute of Technology

• KOBAYASHI Hideo

  Department of Mechano-Aerospace Engineering, Tokyo Institute of Technology

抄録

Recently, laminated composite plates have been applied to many aircraft structures because their mechanical properties are superior to those of conventional materials. Since the laminates have anisotropic elastic properties, an optimum design is needed to make advantageous use of composite laminates. The authors have proposed a successful object-oriented expert system to design laminated composites with actual constraints. A solution to optimize the fiber orientation of stiffeners around open holes, however, has not yet been developed because it is very difficult and requires stress redistribution analysis. In this study, therefore, genetic algorithms (GA) were applied to solve the optimization problem by the object-oriented finite-element stress analysis method. Results obtained were as follows. (1) The GA method is applicable to an open hole model. (2) The random search method is easily applicable to any model.

収録刊行物

• JSME international journal. Ser. A, Mechanics and material engineering

  JSME international journal. Ser. A, Mechanics and material engineering 38 (4), 458-464, 1995-10-01

  一般社団法人日本機械学会

キーワード

• Composites
• Laminates
• Genetic Algorithm
• Optimum Design
• Stress Concentration

詳細情報

• CRID: 1572261552064785024
• NII論文ID: 110002964403
• NII書誌ID: AA10888746
• ISSN: 09148809
• 本文言語コード: en
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