Paper Title:
Study of Non-Monotonity of Forming Processes Using Finite Element Analysis
  Abstract

The method of severe plastic deformation is often used to produce bulk ultra-fine grained materials. Numerous methods exist, which are able to produce ultra fine grained materials. Investigated the mechanical schema of these procedures, we searched for such attributes, which characterize the mentioned techniques. By our previous researches can be established, that for these techniques shear deformation as well as the so-called non-monotonic deformation are characteristic. In this paper a degree of non-monotonity is presented, which is an appropriate measure to characterize the forming processes. Besides this the combined Euler – Lagrange method is showed, which is appropriate to obtain a continuous velocity field from finite element analysis. Eventually the mechanical analysis of the extrusion, conventional and asymmetric rolling is showed with respect to the non-monotonity.

  Info
Periodical
Edited by
P. J. Szabó and T. Berecz
Pages
373-378
DOI
10.4028/www.scientific.net/MSF.659.373
Citation
K. Bobor, G. Krállics, "Study of Non-Monotonity of Forming Processes Using Finite Element Analysis", Materials Science Forum, Vol. 659, pp. 373-378, 2010
Online since
September 2010
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