An isotropic cylinder designed to have a specific bore displacement per unit of internal pressure can be made lighter by removing material from the outer diameter and replacing it with the correct amount of a stiff lightweight composite material. A stress solution is presented for an internally pressurized compound cylinder constructed from an isotropic liner jacketed with a cylindrically orthotropic composite material. The solution is used to determine the set of compound cylinder geometries which have equivalent bore hoop strain to that of an isotropic monoblock cylinder. An equation for predicting the equivalent compound cylinder geometry which provides the maximum possible weight savings over the isotropic design is also presented. To verify the theory, an experimental study was conducted involving the measurement of bore strain for internally pressurized steel liners jacketed with a graphite bismaleimide composite.
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November 1990
Research Papers
Stress Analysis and Weight Savings of Internally Pressurized Composite-Jacketed Isotropic Cylinders
M. D. Witherell,
M. D. Witherell
U.S. Army Armament Research, Development, and Engineering Center, Close Combat Armaments Center, Benet Laboratories, Watervliet, NY 12189
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M. A. Scavullo
M. A. Scavullo
U.S. Army Armament Research, Development, and Engineering Center, Close Combat Armaments Center, Benet Laboratories, Watervliet, NY 12189
Search for other works by this author on:
M. D. Witherell
U.S. Army Armament Research, Development, and Engineering Center, Close Combat Armaments Center, Benet Laboratories, Watervliet, NY 12189
M. A. Scavullo
U.S. Army Armament Research, Development, and Engineering Center, Close Combat Armaments Center, Benet Laboratories, Watervliet, NY 12189
J. Pressure Vessel Technol. Nov 1990, 112(4): 397-403 (7 pages)
Published Online: November 1, 1990
Article history
Received:
September 23, 1988
Revised:
August 3, 1990
Online:
June 17, 2008
Citation
Witherell, M. D., and Scavullo, M. A. (November 1, 1990). "Stress Analysis and Weight Savings of Internally Pressurized Composite-Jacketed Isotropic Cylinders." ASME. J. Pressure Vessel Technol. November 1990; 112(4): 397–403. https://doi.org/10.1115/1.2929895
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