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Civil-Comp Proceedings
ISSN 1759-3433
CCP: 24
Edited by: B.H.V. Topping and M. Papadrakakis
Paper II.7

Geometrically Nonlinear Dynamic Analysis of Curved Euler Beam

K.M. Hsiao and R.T. Yang

Department of Mechanical Engineering, National Chiao Tung University, Hsinchu, Taiwan, Republic of China

Full Bibliographic Reference for this paper
K.M. Hsiao, R.T. Yang, "Geometrically Nonlinear Dynamic Analysis of Curved Euler Beam", in B.H.V. Topping, M. Papadrakakis, (Editors), "Advances in Non-Linear Finite Element Methods", Civil-Comp Press, Edinburgh, UK, pp 77-82, 1994. doi:10.4203/ccp.24.2.7
A CO-rotational finite element formulation for the dynamic analysis of planar curved Euler beam is presented. The Euler-Bernoulli hypothesis and the initial curvature are properly considered for the kinematics of curved beam. Both the deformational nodal forces and the inertia nodal forces of beam element are systematically derived by consistent linearization of the fully geometrically nonlinear beam theory in element coordinates which are constructed at the current configuration of the corresponding beam element. An incremental-iterative method based on the Newmark direct integration method and the Newton-Raphson method is employed here for the solution of the nonlinear dynamic equilibrium equations. Numerical examples are presented to demonstrate the effectiveness of the proposed element and to investigate the effect of the initial curvature on the dynamic response of the curved beam structures.

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