The finite element analysis of cold flat rolling has been carried out by a number of researchers using updated Lagrangian and flow formulations. The major difficulty in the flow formulation is the estimation of hydrostatic stress accurately. In this work, a mixed pressure-velocity finite element flow formulation is used in obtaining the velocity field during the rolling process. The hydrostatic stress is obtained by solving the momentum equations using a finite difference method. The values of Levy–Mises coefficient and strain-rate components required in the finite difference equations are obtained as a function of spatial coordinates using a radial basis function neural network modeling. The proposed method is compared with a mixed pressure-velocity finite element method and experimental results available in the literature. It is observed that the proposed method provides a better agreement with the experimental results.
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February 2008
Research Papers
A Combined Finite Element and Finite Difference Analysis of Cold Flat Rolling
P. P. Gudur,
P. P. Gudur
Department of Mechanical Engineering,
Indian Institute of Technology Guwahati
, Guwahati 781 039, India
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U. S. Dixit
U. S. Dixit
Department of Mechanical Engineering,
Indian Institute of Technology Guwahati
, Guwahati 781 039, India
Search for other works by this author on:
P. P. Gudur
Department of Mechanical Engineering,
Indian Institute of Technology Guwahati
, Guwahati 781 039, India
U. S. Dixit
Department of Mechanical Engineering,
Indian Institute of Technology Guwahati
, Guwahati 781 039, IndiaJ. Manuf. Sci. Eng. Feb 2008, 130(1): 011007 (6 pages)
Published Online: February 6, 2008
Article history
Received:
January 14, 2007
Revised:
October 12, 2007
Published:
February 6, 2008
Citation
Gudur, P. P., and Dixit, U. S. (February 6, 2008). "A Combined Finite Element and Finite Difference Analysis of Cold Flat Rolling." ASME. J. Manuf. Sci. Eng. February 2008; 130(1): 011007. https://doi.org/10.1115/1.2815342
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