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K. Yoon, P.S. Lee, "A Continuum Mechanics based Beam Finite Element for Elastoplastic Large Displacement Analysis", in , (Editors), "Proceedings of the Twelfth International Conference on Computational Structures Technology", Civil-Comp Press, Stirlingshire, UK, Paper 157, 2014. doi:10.4203/ccp.106.157

Keywords: beam, nonlinear analysis, finite element, warping, Wagner effect, postbuckling..

Summary

In this paper, a total Lagrangian formulation of three-dimensional continuum mechanics based beam finite elements is presented for general nonlinear analysis. Warping displacements are continuously interpolated with a corresponding warping director vector and a warping degree of freedom. The beam element has seven degrees of freedom at each beam node. The beam element provides excellent nonlinear performance to predict the large twisting behaviour of beams with complicated three-dimensional geometry. The Green-Lagrange strain obtained implicitly includes the Wagner strain coupled with other strain components. Thus, the present element can successfully simulate complex nonlinear phenomena. The performance of the continuum mechanics based beam finite element in general nonlinear analysis is demonstrated using two post-buckling problems with elastic and elasto-plastic materials.

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Front Page Browse CCP CSETS CTR IJRT Other Authors Search Purchase Guide FAQ Contact us	Civil-Comp Proceedings ISSN 1759-3433 CCP: 106 PROCEEDINGS OF THE TWELFTH INTERNATIONAL CONFERENCE ON COMPUTATIONAL STRUCTURES TECHNOLOGY Edited by: Paper 157 A Continuum Mechanics based Beam Finite Element for Elastoplastic Large Displacement Analysis K. Yoon and P.S. Lee Department of Ocean Systems Engineering, Korea Advanced Institute of Science and Technology, Republic of Korea doi:10.4203/ccp.106.157 purchase the full-text of this paper Full Bibliographic Reference for this paper K. Yoon, P.S. Lee, "A Continuum Mechanics based Beam Finite Element for Elastoplastic Large Displacement Analysis", in , (Editors), "Proceedings of the Twelfth International Conference on Computational Structures Technology", Civil-Comp Press, Stirlingshire, UK, Paper 157, 2014. doi:10.4203/ccp.106.157 Keywords: beam, nonlinear analysis, finite element, warping, Wagner effect, postbuckling.. Summary In this paper, a total Lagrangian formulation of three-dimensional continuum mechanics based beam finite elements is presented for general nonlinear analysis. Warping displacements are continuously interpolated with a corresponding warping director vector and a warping degree of freedom. The beam element has seven degrees of freedom at each beam node. The beam element provides excellent nonlinear performance to predict the large twisting behaviour of beams with complicated three-dimensional geometry. The Green-Lagrange strain obtained implicitly includes the Wagner strain coupled with other strain components. Thus, the present element can successfully simulate complex nonlinear phenomena. The performance of the continuum mechanics based beam finite element in general nonlinear analysis is demonstrated using two post-buckling problems with elastic and elasto-plastic materials. purchase the full-text of this paper (price £20) go to the previous paper go to the next paper return to the table of contents return to the book description purchase this book (price £65 +P&P)
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