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TECHNICAL PAPERS

Stress and Fatigue Life Modeling of Cannon Breech Closures Including Effects of Material Strength and Residual Stress

[+] Author and Article Information
John H. Underwood

US Army Armament Research, Development & Engineering Center, Benet Laboratories, Technology Division, Watervliet, NY 12189e-mail: junder@pica.army.mil

Michael J. Glennon

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

J. Pressure Vessel Technol 123(1), 150-154 (Jul 17, 2000) (5 pages) doi:10.1115/1.1320442 History: Received January 25, 2000; Revised July 17, 2000
Copyright © 2001 by ASME
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References

Figures

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Typical single-lug and multi-lug cannon breech configurations
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Finite element contours of maximum principle stress in series 1 multi-lug breech with typical firing load applied; following overload to produce residual stresses at lug root radii
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Measured fatigue lives from four series of cannon breech tests
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Comparison of two recent tests with mean lives from cannon breech tests
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Comparison of cannon breech and cannon tube fatigue results
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Effect of 5 to 20 percent pressure increase on calculated fatigue lives for various breech conditions

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