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Modelling of powder forming processes in transient-dynamic analysis of large plastic deformations

Khoei, A. R ; Sharif University of Technology | 2012

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  1. Type of Document: Article
  2. DOI: 10.4028/www.scientific.net/AMR.445.362
  3. Publisher: 2012
  4. Abstract:
  5. In this paper, a transient-dynamic analysis is presented for large deformation of powder forming process. The technique is employed using the contact friction algorithm and plasticity behavior of powder. The contact algorithm is applied by imposing the contact constraints and modifying the contact properties of frictional slip through the node-to-surface contact algorithm. A double-surface cap plasticity model is used for highly nonlinear behavior of powder. In order to predict the non-uniform density and stress distributions during powder die-pressing, the numerical schemes are examined for accuracy and efficiency in modeling of a set of powder components
  6. Keywords:
  7. Cap plasticity ; Cap plasticity model ; Contact algorithms ; Contact constraint ; Contact friction ; Contact properties ; Die-pressing ; Dynamic compaction ; Forming process ; Frictional slip ; Highly nonlinear ; Large deformations ; Large plastic deformation ; Non-uniform Density ; Numerical scheme ; Deformation ; Friction ; Plasticity ; Stress concentration ; Algorithms
  8. Source: Advanced Materials Research, 13 July 2011 through 16 July 2011 ; Volume 445 , July , 2012 , Pages 362-367 ; 10226680 (ISSN) ; 9783037853467 (ISBN)
  9. URL: http://www.scientific.net/AMR.445.362