Paper Title:
Nonlinear Analysis of Piercing Rolling Process by Element-Free Galerkin Method
  Abstract

During piercing rolling simulation, extreme mesh deformation cannot be solved by the finite element method (FEM). Re-meshing is necessary to prevent the effect of severe mesh distortion. However, the element-free method can solve this problem because the continuous body is discretized with a set of nodes, not meshes. In this paper, three-dimension rigid-plastic element-free Galerkin Method (EFG) is introduced to analyze the piercing rolling process. The approximation functions are calculated considering a moving least squares (MLS) approach. The Newton-Raphson method is used for the solution of the nonlinear system of equations. The equivalent stress, the equivalent plastic strain and the equivalent plastic strain rate obtained by EFG and rigid-plastic FEM are analyzed and compared. The simulation results of the EFG method are in agreement with those obtained by using the rigid-plastic FEM and the effectiveness of the model is verified.

  Info
Periodical
Edited by
Zhenyu Du and Bin Liu
Pages
285-288
DOI
10.4028/www.scientific.net/AMM.26-28.285
Citation
J. H. Hu, Y. H. Shuang, "Nonlinear Analysis of Piercing Rolling Process by Element-Free Galerkin Method", Applied Mechanics and Materials, Vols. 26-28, pp. 285-288, 2010
Online since
June 2010
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