The distribution of the mode I stress intensity factor (SIF), resulting from autofrettage, along the fronts of radial, semi-elliptical surface cracks pertaining to large uniform arrays of unequal-depth cracks emanating at the bore of an overstrained thick-walled cylinder is studied. The three-dimensional analysis is based on the “two-crack depth level model” previously proposed and is performed via the finite element method employing singular elements along the crack front. The autofrettage residual stress field is simulated using an equivalent thermal load. The distribution of , the stress intensity factor due to autofrettage, for numerous uneven array configurations bearing cracks, a wide range of crack depth-to-wall thickness ratios, , and various crack ellipticities, , are evaluated for a cylinder of radii ratio . The results clearly indicate that unevenness, as reflected in distribution, depends on all three parameters (i.e., the number of cracks in the array, cracks’ depth, and cracks’ ellipticity). The “interaction range” for the different combinations of crack arrays and crack depths is then evaluated. The range of influence between adjacent cracks on the maximal SIF, , is found to be dependent on the density of the array, as reflected in the intercrack aspect ratio, as well as on the cracks’ ellipticity.
Skip Nav Destination
Article navigation
November 2005
Research Papers
The Effect of Autofrettage on Uniform Arrays of Three-Dimensional Unequal-Depth Cracks in a Thick-Walled Cylindrical Vessel
M. Perl,
M. Perl
Professor
Mem. ASME
Pearlstone Center for Aeronautical Engineering Studies, Department of Mechanical Engineering,
Ben-Gurion University of the Negev
, Beer-Sheva 84105, Israel
Search for other works by this author on:
B. Ostraich
B. Ostraich
Graduate Student
Pearlstone Center for Aeronautical Engineering Studies, Department of Mechanical Engineering,
Ben-Gurion University of the Negev
, Beer-Sheva 84105, Israel
Search for other works by this author on:
M. Perl
Professor
Mem. ASME
Pearlstone Center for Aeronautical Engineering Studies, Department of Mechanical Engineering,
Ben-Gurion University of the Negev
, Beer-Sheva 84105, Israel
B. Ostraich
Graduate Student
Pearlstone Center for Aeronautical Engineering Studies, Department of Mechanical Engineering,
Ben-Gurion University of the Negev
, Beer-Sheva 84105, IsraelJ. Pressure Vessel Technol. Nov 2005, 127(4): 423-429 (7 pages)
Published Online: May 4, 2004
Article history
Received:
December 19, 2002
Revised:
May 4, 2004
Citation
Perl, M., and Ostraich, B. (May 4, 2004). "The Effect of Autofrettage on Uniform Arrays of Three-Dimensional Unequal-Depth Cracks in a Thick-Walled Cylindrical Vessel." ASME. J. Pressure Vessel Technol. November 2005; 127(4): 423–429. https://doi.org/10.1115/1.2043210
Download citation file:
Get Email Alerts
Cited By
Related Articles
Stress Intensity Factors for Internal Straight and Curved-Fronted Cracks in Thick Cylinders
J. Pressure Vessel Technol (May,2006)
3-D Stress Intensity Factors for Internal Cracks in an Overstrained Cylindrical Pressure Vessel—Part II: The Combined Effect of Pressure and Autofrettage
J. Pressure Vessel Technol (February,2001)
The Impact of the Bauschinger Effect on Stress Concentrations and Stress Intensity Factors for Eroded Autofrettaged Thick Cylindrical Pressure Vessels
J. Pressure Vessel Technol (April,2012)
Stress Intensity Factors for Partially Autofrettaged Pressurized Thick-Walled Cylinders Containing Closely and Densely Packed Cracks
J. Pressure Vessel Technol (October,2010)
Related Proceedings Papers
Related Chapters
Three-Dimensional Cracked Configurations
The Stress Analysis of Cracks Handbook, Third Edition
Subsection NB—Class 1 Components
Companion Guide to the ASME Boiler & Pressure Vessel Codes, Volume 1 Sixth Edition
Increased Pressure Vessel Fatigue Life Caused by Decreased Autofrettage
Analytical and Experimental Methods for Residual Stress Effects in Fatigue