Crack Propagation in a Gun Barrel Due to the Firing Thermo-Mechanical Stresses

[+] Author and Article Information
Eric Petitpas, B. Campion

Giat-Industries, 7 route de Guerry, 18023 Bourges, France

J. Pressure Vessel Technol 125(3), 293-298 (Aug 01, 2003) (6 pages) doi:10.1115/1.1592813 History: Received May 06, 2003; Revised May 27, 2003; Online August 01, 2003
Copyright © 2003 by ASME
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Hibbitt, Karlson, and Sorensen, Inc., ABAQUS user’s manual, version 5.8, 1 , chap. 7.8.
Newman,  J. C., and Raju,  I. S., 1980, “Stress Intensity Factor for Internal Surface Cracks in Cylindrical Pressure Vessels,” Trans. ASME, Ser. J, 102 , pp. 342–346.
Clark, G., 1981, “Use of Weight Functions to Determine the Stress Intensity Factor for a Cracked Thick-Walled Cylinder,” Report MRL-R-814, Material Research Laboratories, Melbourne.


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Finite element model of the barrel with a longitudinal crack
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Variation of σθ in surface layers, at various moments
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Variation of σθ in the thickness of the barrel’s wall, at various moments
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Variation of KI with the size of the crack at various moments during firing
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Opening of the upper lip of a 12 mm long crack during firing at Pmax, at the end of firing, and after cooling
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Variation of KI/MAX and KI/MIN during firing
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Variation of KI/MAX during firing



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