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, İrlanda, 26 - 28 Nisan 2017, cilt.1896 identifier identifier

  • Yayın Türü: Bildiri / Tam Metin Bildiri
  • Cilt numarası: 1896
  • Doi Numarası: 10.1063/1.5008188
  • Basıldığı Şehir: Dublin
  • Basıldığı Ülke: İrlanda
  • Orta Doğu Teknik Üniversitesi Adresli: Evet

Özet

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.