A experimental 120 mm L55 tank gun barrel showed heavy loss of the chromium plating at the muzzle region. Experimental and theoretical studies led to the conclusion that high frequency oscillations, caused by the traveling pressure wave, are responsible for this effect. This so-called “critical velocity” phenomenon must be a design criterion for modern gun barrels.
Issue Section:
Technical Papers
1.
Tzeng, Jerome T., and Hopkins, David A., 1995, “Dynamic Response of Composite Gun Tubes Subjected to a Moving Internal Pressure,” Army Research Laboratory.
2.
Simkins, T. E., 1987, “Response of a Flexural Waves in Gun Tubes,” ARCCB-TR-87008, ARDEC Benet Weapons Laboratory, Watervliet.
3.
Simkins, T. E. et al., 1990, “Dynamic Strains in a 60 mm Gun Tube—an Experimental Study,” Proceedings of the 6th Army Symposium on Gun Dynamics, Tamiment, Pennsylvania, p. 253ff.
4.
Simkins, T. E., 1993, “Beat Phenomena in Travelling Waves in Cylinders,” Proceedings of the 7th Army Symposium on Gun Dynamics, Newport, Rhode Island, p. 530ff.
5.
Simkins, T. E., 1999. “The Elements of Critical Velocity Theory,” Tutorial at the 9th Army Gun Dynamics Symposium, McLean, Virginia.
6.
Hasenbein, R. et al., 1990, “Dynamic Strain Waves—a Development Perspective,” Proceedings of the 6th Army Symposium on Gun Dynamics, Tamiment, Pennsylvania, p. 286ff.
7.
Hasenbein, R. et al., 1993, “Dynamic Strain Waves and Permanent Bore Enlargement,” Proceedings of the 7th Army Symposium on Gun Dynamics, Newport, Rhode Island, p. 505ff.
8.
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