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Numerical Simulation of Powder Compaction Processes Using an Endochronic Theory in Finite Plasticity Model

Khoei, A. R ; Sharif University of Technology | 2003

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  1. Type of Document: Article
  2. Publisher: 2003
  3. Abstract:
  4. In this paper, an endochronic plasticity model is developed based on a large strain plasticity to describe the behavior of powder material in cold compaction process. The elastic response is stated in terms of hypoelastic model and endochronic plasticity constitutive equations are stated in unrotated frame of reference. A trivially incrementally objective integration scheme for rate constitutive equations is established. Algorithmic modulus consistent with numerical integration algorithm of constitutive equations is extracted. Finally, the numerical schemes are examined for efficacy in the modeling of a plain bush and a rotational-flanged powder compaction component. It is shown how the endochronic plasticity can describe the behavior of powder material from the initial stage of compaction to final stage, in which material behaves as solid metals
  5. Keywords:
  6. Endochronic theory ; Finite plasticity ; Hypoelastic model ; Powder compaction
  7. Source: International Journal of Nonlinear Sciences and Numerical Simulation ; Volume 4, Issue 1 , 2003 , Pages 17-30 ; 15651339 (ISSN)
  8. URL: https://www.researchgate.net/publication/285934872_Numerical_Simulation_of_Powder_Compaction_Processes_Using_an_Endochronic_Theory_in_Finite_Plasticity_Model