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Structural Engineering and Mechanics Volume 54, Number 4, May25 2015 , pages 755-769 DOI: https://doi.org/10.12989/sem.2015.54.4.755 |
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Nonlocal integral elasticity analysis of beam bending by using finite element method |
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M. Taghizadeh, H.R. Ovesy and S.A.M. Ghannadpour
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| Abstract | ||
| In this study, a 2-D finite element formulation in the frame of nonlocal integral elasticity is presented. Subsequently, the bending problem of a nanobeam under different types of loadings and boundary conditions is solved based on classical beam theory and also 3-D elasticity theory using nonlocal finite elements (NL-FEM). The obtained results are compared with the analytical and numerical results of nonlocal differential elasticity. It is concluded that the classical beam theory and the nonlocal differential elasticity can separately lead to significant errors for the problem under consideration as distinct from 3-D elasticity and nonlocal integral elasticity respectively. | ||
| Key Words | ||
| nonlocal integral elasticity; nonlocal differential elasticity; finite element; beam; bending | ||
| Address | ||
| M. Taghizadeh and H.R. Ovesy: Department of Aerospace Engineering and Centre of Excellence in Computational Aerospace Engineering, Amirkabir University of Technology, Tehran, 15875-4413, Iran S.A.M. Ghannadpour: Department of Aerospace Engineering, Faculty of New Technologies and Engineering, Shahid Beheshti University, GC, 1983963113, Tehran, Iran | ||