Mesh Size Effects in Nonlinear Dynamic 3d- Analysis of Reinforced Concrete Beam Under Impact Loads
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Abstract
The investigation into the effect of mesh size in nonlinear 3D-analysis of reinforced concrete beam under dynamic load presents in this paper. The behavior of reinforced concrete beam under dynamic loads are supported by intensive numerical simulations, and the effect of various parameters on the results is of great interest. Finite element simulations were performed in the nonlinear dynamic domain with modified concrete and steel constitutive models. To eliminate the dependence of the computed results on the mesh size, a procedure for calculating the ultimate tensile strain of concrete was developed and implemented into nonlinear dynamic analysis. The proposed model gives good agreement with the experimental results. In particular, the new model can be used effectively with relatively mesh size in reasonable accuracy.
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References
1- Cervera, E., Hinton, E., Bonet, J., and Bicanic, N., Nonlinear Transient Dynamic Analysis of 3-D Structures- A Finite Element Program for steel and reinforced concrete materials , In Numerical Methods and Software For Dynamic Analysis Of Plates and Shells, Hinton E. (ed), Pineridge Press Ltd., pp.320-504, 1988.
Krauthammer, T, Otani, R. K., Mesh, Gravity and Load Effects on Finite Element Simulations of Blast Loaded Reinforced Concrete Structures , Computers and Structures, Vol.63, No.6, pp. 1113-1120, 1997. DOI: https://doi.org/10.1016/S0045-7949(96)00406-3
Abbas, H., Gupta, N. K., Alam, M., Nonlinear Response of Concrete Beams and Plates Under Impact Loading , International Journal of Impact Engineering, 30, pp.1039- 1053, 2004. DOI: https://doi.org/10.1016/j.ijimpeng.2004.06.011
Farag, H. M., Leach, P., Material Modeling for Transient Dynamic Analysis of Reinforced Concrete Structures , International Journal for Numerical Methods in Engineering, 39, pp.2111-2129, 1996. DOI: https://doi.org/10.1002/(SICI)1097-0207(19960630)39:12<2111::AID-NME946>3.0.CO;2-3
Liu, G. Q., “Nonlinear and Transient Finite Element Analysis of General Reinforced Plates and Shells”, Ph.D. Thesis, Department of Civil Engineering, University College of Swansea, 1985.
Beshara, F. B., “Nonlinear Finite Element Analysis of Reinforced Concrete Structures Subjected to Blast Loading”, Ph.D. Thesis, City University, London, 1991.
Perzyna, P., “Fundamental Problem in Visco-Plasticity”, Advance Applied Mechanics, vol.o, pp. 243-377, 1966. DOI: https://doi.org/10.1016/S0065-2156(08)70009-7