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TECHNICAL PAPERS

Analysis of Uniform Arrays of Three-Dimensional Unequal-Depth Cracks in a Thick-Walled Cylindrical Pressure Vessel

[+] Author and Article Information
M. Perl, B. Ostraich

Pearlstone Center for Aeronautical Engineering Studies, Department of Mechanical Engineering, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel

J. Pressure Vessel Technol 125(4), 425-431 (Nov 04, 2003) (7 pages) doi:10.1115/1.1613946 History: Received August 02, 2002; Revised March 15, 2003; Online November 04, 2003
Copyright © 2003 by ASME
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References

Figures

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Schematic of the multicracked cylinder
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The multicracked cylinder: (a) segment containing two unequal cracks: a1 and a2 are the crack depths of the fixed and varying crack subarrays, respectively; and (b) parametric angle φ defining the points on the crack front.
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The normalized maximal SIF as a function of the varying crack depth for an array of n1+n2=32 cracks (a1/t=0.1,a1/c1=a2/c2=0.3)
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(a–d)KP max/KO as a function of the varying crack depth for arrays of n1+n2=16,32,64,128 cracks (a1/t=0.1,a1/c1=a2/c2=0.3)
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(a–d)KP max/KO as a function of the varying crack depth for arrays of n1+n2=64 cracks with fixed crack depths of a1/t=0.1, 0.17, 0.2, and 0.23 (a1/c1=a2/c2=1.5)
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(a–d)KPmax/KO as a function of the varying crack depth for arrays of n1+n2=32 cracks, with ellipticities of a1/c1=0.3, 0.7, 1, and 1.5 (a1/t=0.15)
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The relative size of the “interaction range” as a function of the number of cracks in the array, the fixed crack length, and ellipticity
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The relative size of the “interaction range” as a function of the inter-crack aspect-ratio

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