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A combined experimental-numerical approach for determining mechanical properties of aluminum subjects to nanoindentation

Journal Article


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Abstract


  • A crystal plasticity finite element method (CPFEM) model has been developed to investigate the mechanical properties and micro-texture evolution of single-crystal aluminum induced by a sharp Berkovich indenter. The load-displacement curves, pile-up patterns and lattice rotation angles from simulation are consistent with the experimental results. The pile-up phenomenon and lattice rotation have been discussed based on the theory of crystal plasticity. In addition, a polycrystal tensile CPFEM model has been established to explore the relationship between indentation hardness and yield stress. The elastic constraint factor C is slightly larger than conventional value 3 due to the strain hardening.

Authors


  •   Liu, Mao (external author)
  •   Lu, Cheng
  •   Tieu, A Kiet.
  •   Peng, Ching-Tun (external author)
  •   Kong, Charlie (external author)

Publication Date


  • 2015

Citation


  • Liu, M., Lu, C., Tieu, K. Anh., Peng, C. & Kong, C. (2015). A combined experimental-numerical approach for determining mechanical properties of aluminum subjects to nanoindentation. Scientific Reports, 5 15072-1-15072-16.

Scopus Eid


  • 2-s2.0-84944754848

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=5827&context=eispapers

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers/4800

Has Global Citation Frequency


Start Page


  • 15072-1

End Page


  • 15072-16

Volume


  • 5

Place Of Publication


  • United Kingdom

Abstract


  • A crystal plasticity finite element method (CPFEM) model has been developed to investigate the mechanical properties and micro-texture evolution of single-crystal aluminum induced by a sharp Berkovich indenter. The load-displacement curves, pile-up patterns and lattice rotation angles from simulation are consistent with the experimental results. The pile-up phenomenon and lattice rotation have been discussed based on the theory of crystal plasticity. In addition, a polycrystal tensile CPFEM model has been established to explore the relationship between indentation hardness and yield stress. The elastic constraint factor C is slightly larger than conventional value 3 due to the strain hardening.

Authors


  •   Liu, Mao (external author)
  •   Lu, Cheng
  •   Tieu, A Kiet.
  •   Peng, Ching-Tun (external author)
  •   Kong, Charlie (external author)

Publication Date


  • 2015

Citation


  • Liu, M., Lu, C., Tieu, K. Anh., Peng, C. & Kong, C. (2015). A combined experimental-numerical approach for determining mechanical properties of aluminum subjects to nanoindentation. Scientific Reports, 5 15072-1-15072-16.

Scopus Eid


  • 2-s2.0-84944754848

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=5827&context=eispapers

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers/4800

Has Global Citation Frequency


Start Page


  • 15072-1

End Page


  • 15072-16

Volume


  • 5

Place Of Publication


  • United Kingdom