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Circumferential shear strain in torsion-based severe plastic deformation

Title
Circumferential shear strain in torsion-based severe plastic deformation
Authors
Um, HYHyeok Jae JeongHeon Yong KimLee Ju ParkLee, SHyoung Seop Kim
POSTECH Authors
Lee, S
Date Issued
Jul-2014
Publisher
PERGAMON-ELSEVIER SCIENCE LTD
Abstract
The dependence of the circumferential shear strains of two different shear modes in a cylindrical coordinate system on the shear planes during a torsion-based severe plastic deformation is investigated using strain displacement relationships. Contrasting trends in the circumferential shear strains (increasing epsilon(Z theta) and decreasing epsilon(r theta) with radial distance from the center in the axial plane torsion and radial plane torsion, respectively) are demonstrated, which are in good agreement with published results. (c) 2014 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
Keywords
Severe plastic deformation; Torsion; Finite-element analysis; Circumferential shear strain; HIGH-PRESSURE TORSION; FINITE-ELEMENT-ANALYSIS; NANOCRYSTALLINE MATERIALS; ARB PROCESS; COMPOSITES; PRINCIPLES; EXTRUSION; EVOLUTION; STEEL
URI
http://oasis.postech.ac.kr/handle/2014.oak/13647
DOI
10.1016/J.SCRIPTAMAT.2014.03.017
ISSN
1359-6462
Article Type
Article
Citation
SCRIPTA MATERIALIA, vol. 82, page. 41 - 44, 2014-07
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 LEE, SUNG HAK
Dept of Materials Science & Enginrg
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