contributor author | Russell J. McDonald | |
contributor author | Christos Efstathiou | |
contributor author | Peter Kurath | |
date accessioned | 2017-05-09T00:32:55Z | |
date available | 2017-05-09T00:32:55Z | |
date copyright | July, 2009 | |
date issued | 2009 | |
identifier issn | 0094-4289 | |
identifier other | JEMTA8-27120#031013_1.pdf | |
identifier uri | http://yetl.yabesh.ir/yetl/handle/yetl/140596 | |
description abstract | The purpose of this work is to explore nonuniform plastic flow at small length- and time-scales. Pure single crystal copper tensile specimens were pulled along the [6¯ 5 6] crystal axis at three nominal strain-rates: 0.01%/s, 0.04%/s, and 0.10%/s. Simultaneously, the surface deformation was monitored with in situ digital image correlation over a length-scale of ∼100 μm and a time-scale of 0.07–0.2 s. Sequential digital image correlation strain-rate fields show compelling evidence of a wavelike plastic deformation that is proportional to the nominal strain-rate and decelerates with increasing strain hardening. While a mechanism responsible for the waves is not identified, a methodology correlating observations of multiple researchers is forwarded. | |
publisher | The American Society of Mechanical Engineers (ASME) | |
title | The Wavelike Plastic Deformation of Single Crystal Copper | |
type | Journal Paper | |
journal volume | 131 | |
journal issue | 3 | |
journal title | Journal of Engineering Materials and Technology | |
identifier doi | 10.1115/1.3120410 | |
journal fristpage | 31013 | |
identifier eissn | 1528-8889 | |
keywords | Deformation | |
keywords | Crystals | |
keywords | Copper | |
keywords | Waves AND Mechanisms | |
tree | Journal of Engineering Materials and Technology:;2009:;volume( 131 ):;issue: 003 | |
contenttype | Fulltext | |