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https://hdl.handle.net/10356/98428
Title: | Exact formulations of non-linear planar and spatial Euler-Bernoulli beams with finite strains | Authors: | Zohoor, H. Abedinnasab, Mohammad H. Yoon, Yong-Jin |
Issue Date: | 2012 | Source: | Abedinnasab, M. H., Zohoor, H., & Yoon, Y.-J. (2012). Exact formulations of non-linear planar and spatial Euler-Bernoulli beams with finite strains. Proceedings of the institution of mechanical engineers, part C : journal of mechanical engineering science, 226(5), 1225-1236. | Series/Report no.: | Proceedings of the institution of mechanical engineers, part C : journal of mechanical engineering science | Abstract: | Using Hamilton’s principle, exact equations of motion for non-linear planar and spatial Euler–Bernoulli beams are derived. In the existing non-linear Euler–Bernoulli beam formulations, some elastic terms are dropped by differentiation from the incomplete Green–Lagrange strain tensor followed by negligible elastic deformations of cross-sectional frame. On the other hand, in this article, the exact strain field concerning considerable elastic deformations of cross-sectional frame is used as a source in differentiations. As a result, the achieved closed-form equations are exact and more accurate than formerly reported equations in the literature. Moreover, the applicable dynamic model of inextensional beams which is fully accurate, yet simple has been shown. The planar and inextensional dynamic models have been compared with the existing dynamic models in the literature, and the proposed dynamic models demonstrate significant improvements in the numerical results. Finally, experiments on the carbon fibre rods verify the model presented for inextensional beams. | URI: | https://hdl.handle.net/10356/98428 http://hdl.handle.net/10220/12437 |
DOI: | 10.1177/0954406211420206 | Schools: | School of Mechanical and Aerospace Engineering | Rights: | © 2011 The Authors. | Fulltext Permission: | none | Fulltext Availability: | No Fulltext |
Appears in Collections: | MAE Journal Articles |
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