Optimum structural design of CFRP isogrid cylindrical shell using genetic algorithm
| Autor: | Kazuhiro Sakata, Goichi Ben, Takashi Suzuki |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Materials science
business.industry Mechanical Engineering Shell (structure) 02 engineering and technology Structural engineering 021001 nanoscience & nanotechnology Finite element method Compressive load 020303 mechanical engineering & transports 0203 mechanical engineering Buckling Mechanics of Materials Genetic algorithm Ceramics and Composites Material failure theory Composite material 0210 nano-technology business |
| Zdroj: | Advanced Composite Materials. 27:35-51 |
| ISSN: | 1568-5519 0924-3046 |
| Popis: | This paper describes an optimum structural design of a CFRP isogrid cylindrical shell using a genetic algorithm (GA). When the CFRP isogrid cylindrical shell receives a prescribed uniaxial compressive load, an objective is to minimize weight of the CFRP isogrid cylindrical shell subjected to the constraint conditions of no buckling and no material failure. The buckling and material failure loads were approximated by a response surface method combined with partitioning of design spaces and these approximated values were used in the process of GA instead of FEM calculations in order to reduce the computational time. Furthermore, the differences from the constraint conditions of the linear or the non-linear (local) buckling loads were also calculated and their results were compared with each other. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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