Please use this identifier to cite or link to this item: https://hdl.handle.net/11147/6668
Title: Micromechanical modelling of size effects in microforming
Authors: Yalçınkaya, Tuncay
Demirci, Aytekin
Simonovski, Igor
Özdemir, İzzet
Keywords: Crystal plasticity
Grain boundary conditions
Microforming
Strain gradient plasticity
Micromechanical modelling
Issue Date: 2017
Publisher: Elsevier Ltd.
Source: Yalçınkaya, T., Demirci, A., Simonovski, I., and Özdemir, İ. (2017). Micromechanical modelling of size effects in microforming. Procedia Engineering, 207, 998-1003. doi:10.1016/j.proeng.2017.10.865
Abstract: This paper deals with the micromechanical modelling of the size dependent mechanical response of polycrystalline metallic materials at micron scale through a strain gradient crystal plasticity framework. The model is implemented into a Finite Element software as a coupled implicit user element subroutine where the plastic slip and displacement fields are taken as global variables. Uniaxial tensile tests are conducted for microstructures having different number of grains with random orientations in plane strain setting. The influence of the grain size and number on both local and macroscopic behavior of the material is investigated. The model is capable of capturing both size effect due to statistical distribution of the grains and their size taking into account the grain boundary conditions.
Description: International Conference on the Technology of Plasticity, ICTP 2017; Hucisko; United Kingdom; 17 September 2017 through 22 September 2017
URI: http://doi.org/10.1016/j.proeng.2017.10.865
http://hdl.handle.net/11147/6668
ISSN: 1877-7058
1877-7058
Appears in Collections:Civil Engineering / İnşaat Mühendisliği
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection

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