Study of The effect of thickness and initial geometric imperfection of cylindrical composite shell on the buckling behavior in axial pressure
Today, composite cylindrical shells extensively, have been used in aerospace to increase the performance of the structures. Experience has shown that, when the shells are under compressive loading, Buckling phenomenon will be the most important factor in structural failure. Therefore, the main objec...
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| Format: | Article |
| Language: | fas |
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Semnan University
2018-06-01
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| Series: | مجله مدل سازی در مهندسی |
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| Online Access: | https://modelling.semnan.ac.ir/article_3043_c98c5daf2338a54e726d6c7e949c47ee.pdf |
| _version_ | 1797296632099766272 |
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| author | ebrahim alizadeh javad babaei Pouya Dehestani reza Batalebluie hossein behrooz |
| author_facet | ebrahim alizadeh javad babaei Pouya Dehestani reza Batalebluie hossein behrooz |
| author_sort | ebrahim alizadeh |
| collection | DOAJ |
| description | Today, composite cylindrical shells extensively, have been used in aerospace to increase the performance of the structures. Experience has shown that, when the shells are under compressive loading, Buckling phenomenon will be the most important factor in structural failure. Therefore, the main objective of this research was to study the buckling behavior of composite shells and effective parameters in occurrence of buckling. For this purpose, the finite element simulation by ABAQUS software has been used. First, the estimation of the buckling force for an experimental specimen occurred by using three analyses, including: linear buckle, nonlinear static and dynamic, to compare with experimental findings. Results indicated that the nonlinear static and dynamic analysis, were able to estimate the actual buckling force. The estimation accuracy with respect to the experiment results is about 3~7 percent. After validation process, specimens with different thickness and initial geometric imperfections have been studied and buckling force was measured by using linear buckling and nonlinear static analysis. Finding showed that even slight geometric imperfections, especially for low thickness of shell, could extremely reduced the real buckling force. As a result, high sensitivity of composite shells to initial geometric imperfections, will lead to an unreliable estimation of the buckling force, if there is not enough knowledge of these geometrical imperfections. |
| first_indexed | 2024-03-07T22:07:34Z |
| format | Article |
| id | doaj.art-cccaa498320d438fa4d68905dbf18e35 |
| institution | Directory Open Access Journal |
| issn | 2008-4854 2783-2538 |
| language | fas |
| last_indexed | 2024-03-07T22:07:34Z |
| publishDate | 2018-06-01 |
| publisher | Semnan University |
| record_format | Article |
| series | مجله مدل سازی در مهندسی |
| spelling | doaj.art-cccaa498320d438fa4d68905dbf18e352024-02-23T19:05:22ZfasSemnan Universityمجله مدل سازی در مهندسی2008-48542783-25382018-06-01165312113410.22075/jme.2017.10875.10403043Study of The effect of thickness and initial geometric imperfection of cylindrical composite shell on the buckling behavior in axial pressureebrahim alizadeh0javad babaei1Pouya Dehestani2reza Batalebluie3hossein behrooz4shomal Defense Science and Technology Research Institute /Malek Ashtar University of technologyshomal Defense Science and Technology Research Institute /Malek Ashtar University of technologyshomal Defense Science and Technology Research Institute /Malek Ashtar University of technologyshomal Defense Science and Technology Research Institute /Malek Ashtar University of technologyshomal Defense Science and Technology Research Institute /Malek Ashtar University of technologyToday, composite cylindrical shells extensively, have been used in aerospace to increase the performance of the structures. Experience has shown that, when the shells are under compressive loading, Buckling phenomenon will be the most important factor in structural failure. Therefore, the main objective of this research was to study the buckling behavior of composite shells and effective parameters in occurrence of buckling. For this purpose, the finite element simulation by ABAQUS software has been used. First, the estimation of the buckling force for an experimental specimen occurred by using three analyses, including: linear buckle, nonlinear static and dynamic, to compare with experimental findings. Results indicated that the nonlinear static and dynamic analysis, were able to estimate the actual buckling force. The estimation accuracy with respect to the experiment results is about 3~7 percent. After validation process, specimens with different thickness and initial geometric imperfections have been studied and buckling force was measured by using linear buckling and nonlinear static analysis. Finding showed that even slight geometric imperfections, especially for low thickness of shell, could extremely reduced the real buckling force. As a result, high sensitivity of composite shells to initial geometric imperfections, will lead to an unreliable estimation of the buckling force, if there is not enough knowledge of these geometrical imperfections.https://modelling.semnan.ac.ir/article_3043_c98c5daf2338a54e726d6c7e949c47ee.pdfthin-walled shellcompositefinite element analysisgeometric imperfectionaxial pressure |
| spellingShingle | ebrahim alizadeh javad babaei Pouya Dehestani reza Batalebluie hossein behrooz Study of The effect of thickness and initial geometric imperfection of cylindrical composite shell on the buckling behavior in axial pressure مجله مدل سازی در مهندسی thin-walled shell composite finite element analysis geometric imperfection axial pressure |
| title | Study of The effect of thickness and initial geometric imperfection of cylindrical composite shell on the buckling behavior in axial pressure |
| title_full | Study of The effect of thickness and initial geometric imperfection of cylindrical composite shell on the buckling behavior in axial pressure |
| title_fullStr | Study of The effect of thickness and initial geometric imperfection of cylindrical composite shell on the buckling behavior in axial pressure |
| title_full_unstemmed | Study of The effect of thickness and initial geometric imperfection of cylindrical composite shell on the buckling behavior in axial pressure |
| title_short | Study of The effect of thickness and initial geometric imperfection of cylindrical composite shell on the buckling behavior in axial pressure |
| title_sort | study of the effect of thickness and initial geometric imperfection of cylindrical composite shell on the buckling behavior in axial pressure |
| topic | thin-walled shell composite finite element analysis geometric imperfection axial pressure |
| url | https://modelling.semnan.ac.ir/article_3043_c98c5daf2338a54e726d6c7e949c47ee.pdf |
| work_keys_str_mv | AT ebrahimalizadeh studyoftheeffectofthicknessandinitialgeometricimperfectionofcylindricalcompositeshellonthebucklingbehaviorinaxialpressure AT javadbabaei studyoftheeffectofthicknessandinitialgeometricimperfectionofcylindricalcompositeshellonthebucklingbehaviorinaxialpressure AT pouyadehestani studyoftheeffectofthicknessandinitialgeometricimperfectionofcylindricalcompositeshellonthebucklingbehaviorinaxialpressure AT rezabatalebluie studyoftheeffectofthicknessandinitialgeometricimperfectionofcylindricalcompositeshellonthebucklingbehaviorinaxialpressure AT hosseinbehrooz studyoftheeffectofthicknessandinitialgeometricimperfectionofcylindricalcompositeshellonthebucklingbehaviorinaxialpressure |