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contributor authorSergei Alexandrov
contributor authorYeau-Ren Jeng
contributor authorEvgenii Lomakin
date accessioned2017-05-09T00:42:08Z
date available2017-05-09T00:42:08Z
date copyrightMay, 2011
date issued2011
identifier issn0021-8936
identifier otherJAMCAV-26804#031012_1.pdf
identifier urihttp://yetl.yabesh.ir/yetl/handle/yetl/145265
description abstractThe main objective of the present paper is to show an effect of pressure-dependency of the yield criterion on the development of the plastic zone and the distribution of residual stresses in a thin annular disk subject to a pressure over its inner edge during the loading stage. The Drucker–Prager yield criterion is adopted to account for the effect of the hydrostatic pressure on plastic yielding. The state of stress is supposed to be plane and the material model is perfectly plastic. A semi-analytical stress solution to the problem formulated is given and its qualitative features are emphasized. It is shown that the pressure at which plastic yielding starts and the pressure at which the entire disk becomes plastic are weakly affected by the pressure-dependency of the yield criterion. On the other hand, this dependency has a significant effect on the maximum possible pressure that can be supported by the disk. The minimum pressure at which reverse yielding occurs is also affected by the pressure-dependency of the yield criterion. In general, the residual radial stress distribution is more influenced by the pressure-dependency of the yield criterion than the residual circumferential stress distribution, although the magnitude of circumferential stresses is larger than the magnitude of radial stresses. On the other hand, the effect of pressure-dependency of the yield criterion on the residual circumferential stress distribution is pronounced in the vicinity of the inner edge of the disk, where this stress is important for improving fatigue performance of structures.
publisherThe American Society of Mechanical Engineers (ASME)
titleEffect of Pressure-Dependency of the Yield Criterion on the Development of Plastic Zones and the Distribution of Residual Stresses in Thin Annular Disks
typeJournal Paper
journal volume78
journal issue3
journal titleJournal of Applied Mechanics
identifier doi10.1115/1.4003361
journal fristpage31012
identifier eissn1528-9036
keywordsPressure
keywordsResidual stresses
keywordsDisks
keywordsEquations AND Stress
treeJournal of Applied Mechanics:;2011:;volume( 078 ):;issue: 003
contenttypeFulltext


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