A Combined Finite Element and Finite Difference Analysis of Cold Flat Rolling  

Oleh:

Gudur, P. P. ; Dixit, U. S.

Jenis: Article from Journal - ilmiah internasional
Dalam koleksi: Journal of Manufacturing Science and Engineering vol. 130 no. 1 (Feb. 2008), page 1-6.
Topik: Cold Rolling; Finite Element Method; Finite Difference Method; Radial Basis Function Neural Network; Hydrostatic Stress; Rigid-Plastic Flow Formulation

Ketersediaan

Perpustakaan Pusat (Semanggi) Nomor Panggil: JJ93.11 Non-tandon: 1 (dapat dipinjam: 0) Tandon: tidak ada

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Isi artikel

The finite difference 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 requires in the finite difference equations are obtained as a function of spatial coordinates using a radial basis function neural network modelling. 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 better agreement with the experimental results.

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