Intrinsic and Statistical Size Effects in Microforming

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YALÇINKAYA T., Demirci A., Simonovski I., ÖZDEMİR İ.

20th International ESAFORM Conference on Material Forming, Dublin, Ireland, 26 - 28 April 2017, vol.1896 identifier identifier

  • Publication Type: Conference Paper / Full Text
  • Volume: 1896
  • Doi Number: 10.1063/1.5008188
  • City: Dublin
  • Country: Ireland
  • Middle East Technical University Affiliated: Yes


This paper analyzes the intrinsic (grain size dependent) and the statistical (grain number and orientation distribution dependent) size effects of micron level polycrystalline metallic specimens under plastic deformation through a strain gradient crystal plasticity framework. The macroscopic and local behavior of specimens from very limited number of grains to high number of grains are studied and the results are discussed in detail taking into account different boundary conditions.