Plastic deformation induced microstructure evolution through gradient enhanced crystal plasticity based on a non-convex Helmholtz energy

Research output: Journal contributionsJournal articlesResearchpeer-review

Authors

Abstract A gradient crystal plasticity model in the framework of continuum thermodynamics and rate variational formulation is presented for the description of plastic deformation patterning in a system with non-convex energetic hardening. The paper focuses on the extension of the 1D deformation patterning analysis of Yalcinkaya et al. (2011) to 2D for monotonic loading histories. Solution algorithm is based on the simultaneous solution of displacement and plastic slip fields, which have been considered as primary variables. The incorporation of non-convexity in the plastic slip potential in the Landau-Devonshire form makes the framework dual to phase field modeling approaches with a strong coupling between the deformation and the plastic slip fields. In the phase field modeling approaches the coupling is rather weak, i.e. fields do not have to be coupled as in the current approach based on the decomposition of the total strain. The numerical examples illustrate the intrinsic formation of (laminate type) microstructures and their evolution under mechanical loading together with the macroscopic hardening-softening-stress plateau response. The effect of different number of slip systems, loading rates and boundary conditions are investigated in detail.

Original languageEnglish
JournalInternational Journal of Plasticity
Volume48
Pages (from-to)168-188
Number of pages21
ISSN0749-6419
DOIs
Publication statusPublished - 09.2013
Externally publishedYes

Recently viewed

Publications

  1. Understanding and managing post-acquisition integration as change process
  2. Illegal Migration in Postfordism
  3. Grüner Umbau
  4. Playing with Information
  5. Editorial
  6. Videoportale: Broadcast Yourself? : Versprechen und Enttäuschung
  7. Introduction for Special Issue of Submissions from European Liberal Education Student Conference
  8. Gemeinsam lernen mit Selbstlernprogrammen
  9. Verstehen bildnerischer Narrationen in Eltern-Kind-Dialogen
  10. Alltag
  11. Das Nordfenster
  12. Das Radio
  13. Grain size evolution simulation in aluminium alloys AA 6082 and AA 7020 during hot forward extrusion process
  14. Nitrous oxide emission from biogras production systems on a coastal marsh soil
  15. Idol/Ikone
  16. Knowledge-networking capability in German SMEs
  17. Virtual Reality
  18. Diversität und Heterogenität
  19. John Stuart Mill zur Einführung
  20. Sozialwirtschaft
  21. Networking and Interaction between Regions and Higher Education Institutions
  22. Spät erkannt
  23. Review
  24. DRGs and the Professional Independence of Physicians
  25. Racheengel
  26. Kampfkunst
  27. Lotta Continua in Frankfurt, Türken-Terror in Köln.
  28. IGH
  29. The business case for sustainability in retrospect
  30. "i like reggae and Bob Marley is already dead"
  31. Samenbanken, Leihmütter, Retortenbabies
  32. The marketing and public affairs of sustainability
  33. Qualitätsmanagement durch universitäre Ideen in modernen Prozessen
  34. Strategic Early Options under an Emerging Emissions Trading Scheme
  35. The role of past interactions in great apes' communication about absent entities
  36. Mentoring und Coaching an der Universität
  37. Kompetenzmodellierung Eine aktuelle Zwischenbilanz des DFG- Schwerpunktprogramms