Optimization of multi-sandwich-panel composite structures for minimum weight with strength and buckling considerations
A genetic algorithm-based method is proposed to globally optimize the stacking sequence of multi-sandwich-panel composite structures for minimum weight with strength and buckling considerations. The prerequisites for the continuity between sandwich panels are first studied. To implement the summariz...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
De Gruyter
2018-03-01
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| Series: | Science and Engineering of Composite Materials |
| Subjects: | |
| Online Access: | https://doi.org/10.1515/secm-2015-0171 |
| _version_ | 1819079021314441216 |
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| author | Fan Hai-Tao Wang Hai Chen Xiu-Hua |
| author_facet | Fan Hai-Tao Wang Hai Chen Xiu-Hua |
| author_sort | Fan Hai-Tao |
| collection | DOAJ |
| description | A genetic algorithm-based method is proposed to globally optimize the stacking sequence of multi-sandwich-panel composite structures for minimum weight with strength and buckling considerations. The prerequisites for the continuity between sandwich panels are first studied. To implement the summarized continuity rules in the evolutionary optimization, three newly constructed chromosomes are developed to encode the global stacking sequence with no additional repair. Genetic operators, including specialized mutation, swapping and crossover operators, are also developed to effectively explore the design space and keep the continuity rules followed. The Hashin criterion and maximum stress criterion are used to evaluate the strength of sandwich panels. A typical multi-sandwich-panel composite structure with identical and different core thicknesses is optimized to verify the validity and efficiency of the proposed method. It is found that much lighter solutions are obtained with an acceptable efficiency in all cases. It is also found that the weight of the multi-sandwich-panel composite structures can be further reduced when the core thicknesses are not identical. |
| first_indexed | 2024-12-21T19:22:22Z |
| format | Article |
| id | doaj.art-b56bd25f16774fb4a1ba2d2f4747ab5c |
| institution | Directory Open Access Journal |
| issn | 0792-1233 2191-0359 |
| language | English |
| last_indexed | 2024-12-21T19:22:22Z |
| publishDate | 2018-03-01 |
| publisher | De Gruyter |
| record_format | Article |
| series | Science and Engineering of Composite Materials |
| spelling | doaj.art-b56bd25f16774fb4a1ba2d2f4747ab5c2022-12-21T18:52:55ZengDe GruyterScience and Engineering of Composite Materials0792-12332191-03592018-03-0125222924110.1515/secm-2015-0171Optimization of multi-sandwich-panel composite structures for minimum weight with strength and buckling considerationsFan Hai-Tao0Wang Hai1Chen Xiu-Hua2School of Aeronautics and Astronautics, Shanghai Jiao Tong University, 200240 Shanghai, People’s Republic of ChinaSchool of Aeronautics and Astronautics, Shanghai Jiao Tong University, 200240 Shanghai, People’s Republic of ChinaSchool of Aeronautics and Astronautics, Shanghai Jiao Tong University, 200240 Shanghai, People’s Republic of ChinaA genetic algorithm-based method is proposed to globally optimize the stacking sequence of multi-sandwich-panel composite structures for minimum weight with strength and buckling considerations. The prerequisites for the continuity between sandwich panels are first studied. To implement the summarized continuity rules in the evolutionary optimization, three newly constructed chromosomes are developed to encode the global stacking sequence with no additional repair. Genetic operators, including specialized mutation, swapping and crossover operators, are also developed to effectively explore the design space and keep the continuity rules followed. The Hashin criterion and maximum stress criterion are used to evaluate the strength of sandwich panels. A typical multi-sandwich-panel composite structure with identical and different core thicknesses is optimized to verify the validity and efficiency of the proposed method. It is found that much lighter solutions are obtained with an acceptable efficiency in all cases. It is also found that the weight of the multi-sandwich-panel composite structures can be further reduced when the core thicknesses are not identical.https://doi.org/10.1515/secm-2015-0171bucklingcomposite structuregenetic algorithmoptimizationsandwich panel |
| spellingShingle | Fan Hai-Tao Wang Hai Chen Xiu-Hua Optimization of multi-sandwich-panel composite structures for minimum weight with strength and buckling considerations Science and Engineering of Composite Materials buckling composite structure genetic algorithm optimization sandwich panel |
| title | Optimization of multi-sandwich-panel composite structures for minimum weight with strength and buckling considerations |
| title_full | Optimization of multi-sandwich-panel composite structures for minimum weight with strength and buckling considerations |
| title_fullStr | Optimization of multi-sandwich-panel composite structures for minimum weight with strength and buckling considerations |
| title_full_unstemmed | Optimization of multi-sandwich-panel composite structures for minimum weight with strength and buckling considerations |
| title_short | Optimization of multi-sandwich-panel composite structures for minimum weight with strength and buckling considerations |
| title_sort | optimization of multi sandwich panel composite structures for minimum weight with strength and buckling considerations |
| topic | buckling composite structure genetic algorithm optimization sandwich panel |
| url | https://doi.org/10.1515/secm-2015-0171 |
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