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TECHNICAL PAPERS

Critical Fracture Processes in Army Cannons: A Review

[+] Author and Article Information
John H. Underwood, Edward Troiano

US Army Armament Research, Development & Engineering Center, Benet Laboratories, Technology Division, Watervliet, NY 12189

J. Pressure Vessel Technol 125(3), 287-292 (Aug 01, 2003) (6 pages) doi:10.1115/1.1593075 History: Received April 30, 2003; Revised May 06, 2003; Online August 01, 2003
Copyright © 2003 by ASME
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References

Davidson, T. E., Throop, J. F., and Underwood, J. H., 1977, “Failure of a 175 mm Tube and the Resolution of the Problem Using an Autofrettaged Design,” Case Studies in Fracture Mechanics, T. P. Rich and D. J. Cartwright, Eds., Army Materials and Mechanics Research Center, Watertown, MA, pp. 3.9.1–13.
ASTM E1820, Standard Test Method for Measurement of Fracture Toughness, 2000, Annual Book of ASTM Standards, Vol. 03.01, American Society for Testing and Materials, West Conshohocken, PA, pp. 1000–1033.
ASTM E23, Standard Test Methods E23 for Notched Bar Impact Testing of Metallic Materials, 2000, Annual Book of ASTM Standards, Vol. 03.01, American Society for Testing and Materials, West Conshohocken, PA, pp. 138–162.
Underwood,  J. H., Farrara,  R. A., and Audino,  M. J., 1994, “Yield-Before-Break Fracture Mechanics Analysis of High Strength Steel Pressure Vessels,” ASME J. Pressure Vessel Technol., 117, pp. 79–84.
Underwood, J. H., and Audino, M. A., 1998, “Effects of Initial Cracks and Firing Environment on Cannon Fatigue Life,” Fatigue Design 1998, Vol. II, Technical Research Center of Finland, Espoo, Finland, pp. 491–500.
Underwood, J. H., and Parker, A. P., 1997, “Fatigue Life Assessment of Steel Pressure Vessels With Varying Stress Concentration, Residual Stress and Initial Cracks,” Advances in Fracture Research, Proceedings of ICF9, Pergamon, New York, pp. 215–226.
Parker,  A. P., 2001, “Autofrettage of Open-End Tubes-Pressures, Stresses, Strains and Code Comparisons,” ASME J. Pressure Vessel Technol., 123, pp. 271–281.
Troiano, E., Parker, A. P., Underwood, J. H., and Mossey, C., 2002, “Experimental Data, Numerical Fit and Life Approximations Relating to the Bauschinger Effect in High Strength Armament Steels,” Proceedings of Gun Tubes 2002, 15–18 September 2002, Oxford, England, in press.
Underwood, J. H., Parker, A. P., Troiano, E., Vigilante, G. N., and Witherell, M. D., 2001, “Fatigue and Hydrogen Cracking in Cannons With Mechanical and Thermal Residual Stress,” Advances in Fracture Research, Proceedings of ICF10, Pergamon, New York.
Underwood, J. H., Parker, A. P., Vigilante, G. N., and Cote, P. J., 2002, “Thermal Damage, Cracking and Rapid Erosion of Cannon Bore Coatings,” Proceedings of Gun Tubes 2002, 15–18 September 2002, Oxford, England, in press.
Cote,  P. J., Kendall,  G., and Todaro,  M. E., 2001, “Laser Pulse Heating of Gun Bore Coatings,” Surf. Coat. Technol., 146–147, pp. 65–69.
Vigilante,  G. N., Underwood,  J. H., Crayon,  D., Tauscher,  S. S., Sage,  T., and Troiano,  E., 1997, “Hydrogen Induced Cracking Tests of High Strength Steels and Nickel-Iron Base Alloys Using the Bolt-Loaded Specimen,” Fatigue and Fracture Mechanics, ASTM STP, 1321 , ASTM, West Conshohocken, PA, pp. 602–616.
Underwood,  J. H., Parker,  A. P., Cote,  P. J., and Sopok,  S., 1999, “Compressive Thermal Yielding Leading to Hydrogen Cracking in a Fired Cannon,” ASME J. Pressure Vessel Technol., 121, pp. 116–120.
Evans,  A. G., and Hutchinson,  J. W., 1995, “The Thermomechanical Integrity of Thin Films and Multilayers,” Acta Metall. Mater., 43, pp. 2507–2530.

Figures

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Fracture surface of a 175-mm cannon tube
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Fracture toughness tests of cannon steel
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Effect of yield strength on fracture of cannons
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Fracture surface of a 120-mm tube section
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Fatigue life models; FIF and stress range
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Effect of residual stress on fatigue life
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Thermal damage and cracking in fired tube and laser-heated specimen
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Thermo-mechanical model for near-bore thermal damage and cracking in fired cannon #26
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Thermo-mechanical model for near-surface thermal damage and cracking in a laser-heated sample
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Interface-slip zone model for coating fracture

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