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Modeling of induced empirical constitutive relations on materials with FCC, BCC, and HCP crystalline structures: Severe plastic deformation

Kazeminezhad, M ; Sharif University of Technology | 2010

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  1. Type of Document: Article
  2. DOI: 10.1007/s00170-009-2239-9
  3. Publisher: 2010
  4. Abstract:
  5. In this study, empirical constitutive relations of materials with different crystalline structures through severe plastic deformation are introduced. Here, for each material, an optimized empirical relation is chosen by fitting some empirical relations on the results achieved from a dislocation- based constitutive model. In this work, four modes of empirical relations are fitted on the results of modified Estrin-Toth-Molinari-Brechet constitutive model for four materials with different crystalline structures (Al, Cu, Ta, and Zr). The obtained relations for the materials can be usable in commercial finite element codes
  6. Keywords:
  7. ETMB model ; Commercial finite element codes ; Constitutive relations ; Empirical relations ; Severe plastic deformations ; Constitutive models ; Crystalline materials ; Plastic deformation ; Zirconium ; Crystal structure
  8. Source: International Journal of Advanced Manufacturing Technology ; Volume 47, Issue 9-12 , April , 2010 , Pages 1033-1039 ; 02683768 (ISSN)
  9. URL: http://link.springer.com/article/10.1007%2Fs00170-009-2239-9