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contributor authorM. Perl
contributor authorR. Aroné
date accessioned2017-05-08T23:28:00Z
date available2017-05-08T23:28:00Z
date copyrightMay, 1988
date issued1988
identifier issn0094-9930
identifier otherJPVTAS-28301#147_1.pdf
identifier urihttp://yetl.yabesh.ir/yetl/handle/yetl/104364
description abstractMode I stress intensity factors for crack arrays of up to 1024 equal radial cracks originating at the inner surface of a partially autofrettaged, pressurized thick-walled cylinder are evaluated. Both stress intensity factors i.e., K Ip due to the pressurization, and the negative K IA due to the compressive residual stresses, are calculated for numerous crack arrays (n = 2–1024), a wide range of nondimensional crack lengths (1 /a = 0.005–0.625), and various levels of autofrettage (ε = 30, 60, 100 percent) via the finite element method. The obtained results emphasize the notable significance of the number of cracks in the array, as well as the importance of the level of autofrettage, on the stress intensity factor prevailing at the tip of these cracks. The sensitivity of the favorable effect of the overstrain in slowing down fatigue crack growth to any decrease in the level of autofreggate is also discussed.
publisherThe American Society of Mechanical Engineers (ASME)
titleStress Intensity Factors for a Radially Multicracked Partially Autofrettaged Pressurized Thick-Walled Cylinder
typeJournal Paper
journal volume110
journal issue2
journal titleJournal of Pressure Vessel Technology
identifier doi10.1115/1.3265579
journal fristpage147
journal lastpage154
identifier eissn1528-8978
keywordsStress
keywordsCylinders
keywordsFracture (Materials)
keywordsAutofrettage
keywordsFatigue cracks
keywordsResidual stresses AND Finite element methods
treeJournal of Pressure Vessel Technology:;1988:;volume( 110 ):;issue: 002
contenttypeFulltext


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