Please use this identifier to cite or link to this item: http://buratest.brunel.ac.uk/handle/2438/1767
Title: Descriptions of reversed yielding in bending
Authors: Rees, DWA
Keywords: Beam; Stress—strain; Elastic—plastic; Stress distribution; Residual stress
Issue Date: 2007
Publisher: Professional Engineering Publishing
Citation: Proceedings of the institution of mechanical engineers, part C: Journal of mechanical engineering science. 221(9): pp.981-991.
Abstract: Existence of Bauschinger effect in bending-unbending of copper beams has been shown from experiment. In modelling of the Bauschinger effect, it is shown that a significant second plastic penetration can occur with the release of the moment required for an elasticplastic bending of a beam. The theory is given for both linear and parabolic hardening material models. The elastic and plastic strains are developed from each hardening model to express the beam curvature of the unstressed neutral axis. Conditions are expressed, using the normalized stress—strain response of a rectangular beam section, for which the release is purely elastic and elastic—plastic. Under the latter the depth to which a second zone of plasticity penetrates is given. Two stress distributions: one for applying the moment and the other for its release, are sufficient to derive the residual stress. Residuals found for parabolic hardening are believed to be more realistic than those from simpler linear or perfectly plastic models, particularly, where a second penetration is evident.
URI: http://bura.brunel.ac.uk/handle/2438/1767
DOI: http://dx.doi.org/10.1243/09544062JMES443
ISSN: 0954-4062
Appears in Collections:Design
Dept of Design Research Papers

Files in This Item:
File Description SizeFormat 
Descriptions of Reversed Yielding in Bending.pdf329.68 kBAdobe PDFView/Open


Items in BURA are protected by copyright, with all rights reserved, unless otherwise indicated.