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Thermomechanical behaviours of strip and work-rolls in cold rolling process

Koohbor, B ; Sharif University of Technology | 2011

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  1. Type of Document: Article
  2. DOI: 10.1177/0309324711417693
  3. Publisher: 2011
  4. Abstract:
  5. A finite element analysis was developed to determine thermomechanical behaviours of strip and work-roll during cold rolling process under practical rolling conditions. The velocity field was first obtained using a rigid-plastic finite element formulation and then it was used to assess the strain and stress distributions within the strip and at the same time, a thermal finite element model based on streamline upwind Petrov-Galerkin scheme was employed to predict temperature distribution within the metal being rolled. In the next stage, the predicted temperature and stress fields at the contact region of strip/work-roll were employed as the boundary conditions to evaluate the thermomechanical behaviour of the work-roll while the effect of back-up rolls was also considered in the mechanical part of the analysis. The model is shown to provide a proper insight for studying the deformation of strip and work-roll during high speed cold rolling process with a relatively low computational cost
  6. Keywords:
  7. Cold rolling process ; Computational costs ; Contact regions ; Finite Element ; Finite element formulations ; Finite element models ; Mechanical parts ; Petrov-Galerkin ; Rolling conditions ; Streamline Upwind Petrov-Galerkin method ; Stress field ; Thermomechanical behaviour ; Thermomechanical modelling ; Velocity field ; Work-rolls ; Finite element method ; Galerkin methods ; Stress concentration ; Thermomechanical treatment ; Velocity ; Cold rolling
  8. Source: Journal of Strain Analysis for Engineering Design ; Volume 46, Issue 8 , June , 2011 , Pages 794-804 ; 03093247 (ISSN)
  9. URL: http://sdj.sagepub.com/content/46/8/794