Investigation on Buckling of Orthotropic Circular and Annular Plates of Continuously Variable Thickness by Optimized Ritz Method
This paper investigates symmetrical buckling of orthotropic circular and annular plates of continuous variable thickness. Uniform compression loading is applied at the plate outer boundary. Thickness varies linearly along radial direction. Inner edge is free, while outer edge has different boundary...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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EDP Sciences
2010-07-01
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| Series: | International Journal for Simulation and Multidisciplinary Design Optimization |
| Subjects: | |
| Online Access: | https://www.ijsmdo.org/articles/smdo/pdf/2010/03/smdo2010016.pdf |
| _version_ | 1818445110588735488 |
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| author | Farhatnia Fatemeh Golshah Arash |
| author_facet | Farhatnia Fatemeh Golshah Arash |
| author_sort | Farhatnia Fatemeh |
| collection | DOAJ |
| description | This paper investigates symmetrical buckling of orthotropic circular and annular plates of continuous variable thickness. Uniform compression loading is applied at the plate outer boundary. Thickness varies linearly along radial direction. Inner edge is free, while outer edge has different boundary conditions: clamped, simply and elastically restraint against rotation. The optimized Ritz method is applied for buckling analysis. In this method, a polynomial function that is based on static deformation of orthotropic circular plates in bending is used. Also, by employing an exponential parameter in deformation function, eigenvalue is minimized in respect to this parameter. The obtained results show that in plate with identical thickness, increasing of outer radius decreases the buckling load factor. |
| first_indexed | 2024-12-14T19:26:37Z |
| format | Article |
| id | doaj.art-67d54217318d47578e65ec893fb7d3ca |
| institution | Directory Open Access Journal |
| issn | 1779-627X 1779-6288 |
| language | English |
| last_indexed | 2024-12-14T19:26:37Z |
| publishDate | 2010-07-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | International Journal for Simulation and Multidisciplinary Design Optimization |
| spelling | doaj.art-67d54217318d47578e65ec893fb7d3ca2022-12-21T22:50:12ZengEDP SciencesInternational Journal for Simulation and Multidisciplinary Design Optimization1779-627X1779-62882010-07-0143-412713310.1051/ijsmdo/2010016smdo2010016Investigation on Buckling of Orthotropic Circular and Annular Plates of Continuously Variable Thickness by Optimized Ritz MethodFarhatnia Fatemeh0Golshah Arash1Islamic Azad University-Branch of Khomeinishahr, Mechanical Engineering FacultyIran Aircraft Manufacturing (HESA), Moallem HighwayThis paper investigates symmetrical buckling of orthotropic circular and annular plates of continuous variable thickness. Uniform compression loading is applied at the plate outer boundary. Thickness varies linearly along radial direction. Inner edge is free, while outer edge has different boundary conditions: clamped, simply and elastically restraint against rotation. The optimized Ritz method is applied for buckling analysis. In this method, a polynomial function that is based on static deformation of orthotropic circular plates in bending is used. Also, by employing an exponential parameter in deformation function, eigenvalue is minimized in respect to this parameter. The obtained results show that in plate with identical thickness, increasing of outer radius decreases the buckling load factor.https://www.ijsmdo.org/articles/smdo/pdf/2010/03/smdo2010016.pdfbucklingorthotropic circular and annular platesoptimized ritzvariable thickness. |
| spellingShingle | Farhatnia Fatemeh Golshah Arash Investigation on Buckling of Orthotropic Circular and Annular Plates of Continuously Variable Thickness by Optimized Ritz Method International Journal for Simulation and Multidisciplinary Design Optimization buckling orthotropic circular and annular plates optimized ritz variable thickness. |
| title | Investigation on Buckling of Orthotropic Circular and Annular Plates of Continuously Variable Thickness by Optimized Ritz Method |
| title_full | Investigation on Buckling of Orthotropic Circular and Annular Plates of Continuously Variable Thickness by Optimized Ritz Method |
| title_fullStr | Investigation on Buckling of Orthotropic Circular and Annular Plates of Continuously Variable Thickness by Optimized Ritz Method |
| title_full_unstemmed | Investigation on Buckling of Orthotropic Circular and Annular Plates of Continuously Variable Thickness by Optimized Ritz Method |
| title_short | Investigation on Buckling of Orthotropic Circular and Annular Plates of Continuously Variable Thickness by Optimized Ritz Method |
| title_sort | investigation on buckling of orthotropic circular and annular plates of continuously variable thickness by optimized ritz method |
| topic | buckling orthotropic circular and annular plates optimized ritz variable thickness. |
| url | https://www.ijsmdo.org/articles/smdo/pdf/2010/03/smdo2010016.pdf |
| work_keys_str_mv | AT farhatniafatemeh investigationonbucklingoforthotropiccircularandannularplatesofcontinuouslyvariablethicknessbyoptimizedritzmethod AT golshaharash investigationonbucklingoforthotropiccircularandannularplatesofcontinuouslyvariablethicknessbyoptimizedritzmethod |