A theoretical and experimental study on geometric nonlinearity of initially curved cantilever beams
This paper presents a theoretical and experimental study on large deflection behavior of initially curved cantilever beams subjected to various types of loadings. The physical system as a straight cantilever beam subjected to a tip concentrated load is considered in this study. Nonlinear differentia...
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| Format: | Article |
| Language: | English |
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Elsevier
2016-03-01
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| Series: | Engineering Science and Technology, an International Journal |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S221509861500107X |
| _version_ | 1818930054286016512 |
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| author | Sushanta Ghuku Kashi Nath Saha |
| author_facet | Sushanta Ghuku Kashi Nath Saha |
| author_sort | Sushanta Ghuku |
| collection | DOAJ |
| description | This paper presents a theoretical and experimental study on large deflection behavior of initially curved cantilever beams subjected to various types of loadings. The physical system as a straight cantilever beam subjected to a tip concentrated load is considered in this study. Nonlinear differential equations are obtained for large deflection analysis of such a straight cantilever beam, and this problem is known to involve geometrical nonlinearity. The equations are solved numerically with the help of MATLAB® computational platform to get deflection profiles of the concerned problem. These results are imposed subsequently on the center line of an initially curved beam to get theoretical load-deflection behavior of curved beam problems. To verify the theoretical model, experiment is carried out with the master leaf of a leaf spring bundle by modeling it as an initially curved cantilever beam. The effects of initial clamping and geometry variations in the eye-region are observed from experimental investigation which is commonly neglected in the mathematical formulation. Comparisons of the theoretical results with the experimental results are quite good, but the avenues for further improvement are also reported. The proposed approach is further extended to study large deflection behavior of an initially curved cantilever beam subjected to distributed and combined load. These results are successfully validated with existing results for straight beams and some new results are furnished for initially curved cantilever beams. |
| first_indexed | 2024-12-20T03:54:36Z |
| format | Article |
| id | doaj.art-830754b58ea94898bda18495196a86fd |
| institution | Directory Open Access Journal |
| issn | 2215-0986 |
| language | English |
| last_indexed | 2024-12-20T03:54:36Z |
| publishDate | 2016-03-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Engineering Science and Technology, an International Journal |
| spelling | doaj.art-830754b58ea94898bda18495196a86fd2022-12-21T19:54:22ZengElsevierEngineering Science and Technology, an International Journal2215-09862016-03-0119113514610.1016/j.jestch.2015.07.006A theoretical and experimental study on geometric nonlinearity of initially curved cantilever beamsSushanta GhukuKashi Nath SahaThis paper presents a theoretical and experimental study on large deflection behavior of initially curved cantilever beams subjected to various types of loadings. The physical system as a straight cantilever beam subjected to a tip concentrated load is considered in this study. Nonlinear differential equations are obtained for large deflection analysis of such a straight cantilever beam, and this problem is known to involve geometrical nonlinearity. The equations are solved numerically with the help of MATLAB® computational platform to get deflection profiles of the concerned problem. These results are imposed subsequently on the center line of an initially curved beam to get theoretical load-deflection behavior of curved beam problems. To verify the theoretical model, experiment is carried out with the master leaf of a leaf spring bundle by modeling it as an initially curved cantilever beam. The effects of initial clamping and geometry variations in the eye-region are observed from experimental investigation which is commonly neglected in the mathematical formulation. Comparisons of the theoretical results with the experimental results are quite good, but the avenues for further improvement are also reported. The proposed approach is further extended to study large deflection behavior of an initially curved cantilever beam subjected to distributed and combined load. These results are successfully validated with existing results for straight beams and some new results are furnished for initially curved cantilever beams.http://www.sciencedirect.com/science/article/pii/S221509861500107XCantilever beamLeaf springLarge deflectionGeometric nonlinearityNumerical solution |
| spellingShingle | Sushanta Ghuku Kashi Nath Saha A theoretical and experimental study on geometric nonlinearity of initially curved cantilever beams Engineering Science and Technology, an International Journal Cantilever beam Leaf spring Large deflection Geometric nonlinearity Numerical solution |
| title | A theoretical and experimental study on geometric nonlinearity of initially curved cantilever beams |
| title_full | A theoretical and experimental study on geometric nonlinearity of initially curved cantilever beams |
| title_fullStr | A theoretical and experimental study on geometric nonlinearity of initially curved cantilever beams |
| title_full_unstemmed | A theoretical and experimental study on geometric nonlinearity of initially curved cantilever beams |
| title_short | A theoretical and experimental study on geometric nonlinearity of initially curved cantilever beams |
| title_sort | theoretical and experimental study on geometric nonlinearity of initially curved cantilever beams |
| topic | Cantilever beam Leaf spring Large deflection Geometric nonlinearity Numerical solution |
| url | http://www.sciencedirect.com/science/article/pii/S221509861500107X |
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