Investigation of continuous deformation behavior around initial yield point of single crystal copper by using micro scale torsion test

Kozo Koiwa, Nobuyuki Shishido, Chuantong Chen, Masaki Omiya, Shoji Kamiya, Hisashi Sato, Masahiro Nishida, Takashi Suzuki, Tomoji Nakamura, Toshiaki Suzuki, Takeshi Nokuo

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Micro scale torsion test method was developed to investigate continuous deformation behavior around initial yield point of copper single crystal structure. Continuous load-displacement curve was obtained by torsion test because dislocation burst phenomenon was suppressed by stress gradient and torsion stress direction which parallel to the specimen surface. In case that new constitutive law was applied to the simulation, crystal plasticity parameter of copper could be evaluated by parameter fitting which using load-displacement curve of experiment and simulation.

Original languageEnglish
Pages (from-to)94-97
Number of pages4
JournalScripta Materialia
Volume111
DOIs
Publication statusPublished - 2016 Jan 15

Keywords

  • Copper
  • Dislocations
  • Finite element analysis
  • Micromechanical modeling
  • Plasticity

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics

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  • Cite this

    Koiwa, K., Shishido, N., Chen, C., Omiya, M., Kamiya, S., Sato, H., Nishida, M., Suzuki, T., Nakamura, T., Suzuki, T., & Nokuo, T. (2016). Investigation of continuous deformation behavior around initial yield point of single crystal copper by using micro scale torsion test. Scripta Materialia, 111, 94-97. https://doi.org/10.1016/j.scriptamat.2015.08.022