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120MM Gun Heat Input Measurements.

ADA118378

Publication Date	1982
Personal Author	Brosseau, T. L.; Stobie, I. C.; Ward, J. R.; Geene, R. W.
Page Count	34
Abstract	Imbedded thermocouples just beyond the engraving region have been used to measure total heat input in guns. The method has been applied to the XM256 cannon to estimate erosion. Rounds were fired with JA2, M30, M6, and M1 propellants with various charge to mass ratios. Efforts were made to measure total heat input without the combustible case. Total heat input was reduced from 387 J/mm to 247 J/mm in a series of rounds with 0.3 kg silicone ablative as a wear-reducing additive.
Keywords	Guns Gun barrels Heat transfer Ablative materials Firing tests(Ordnance) Wear Thermocouples Gun propellants Temperature Protective coatings Silicones Erosion Test methods XM-256 gun(120-mm) Guns(120-mm) M-30 propellant M-6 propellant M-l propellant JA-2 propellant M-68 gun(105-mm) Guns(105mm) M-392A2 projectile(105-mm) Projectiles(105-mm)
Source Agency	Non Paid ADAS
NTIS Subject Category	79G - Guns 79A - Ammunition, Explosives, & Pyrotechnics
Corporate Authors	Army Armament Research and Development Command, Aberdeen Proving Ground, MD. Ballistic Research Lab.; Shared Bibliographic Input.
Supplemental Notes	Presented at the 1981 JANNAF Propulsion Meeting, May 81 in New Orleans, LA.
Document Type	Technical Report
Title Note	Technical rept.
NTIS Issue Number	198225

120MM Gun Heat Input Measurements.

120MM Gun Heat Input Measurements.
ADA118378

Publication Date	1982
Personal Author	Brosseau, T. L.; Stobie, I. C.; Ward, J. R.; Geene, R. W.
Page Count	34
Abstract	Imbedded thermocouples just beyond the engraving region have been used to measure total heat input in guns. The method has been applied to the XM256 cannon to estimate erosion. Rounds were fired with JA2, M30, M6, and M1 propellants with various charge to mass ratios. Efforts were made to measure total heat input without the combustible case. Total heat input was reduced from 387 J/mm to 247 J/mm in a series of rounds with 0.3 kg silicone ablative as a wear-reducing additive.
Keywords	Guns Gun barrels Heat transfer Ablative materials Firing tests(Ordnance) Wear Thermocouples Gun propellants Temperature Protective coatings Silicones Erosion Test methods XM-256 gun(120-mm) Guns(120-mm) M-30 propellant M-6 propellant M-l propellant JA-2 propellant M-68 gun(105-mm) Guns(105mm) M-392A2 projectile(105-mm) Projectiles(105-mm)
Source Agency	Non Paid ADAS
NTIS Subject Category	79G - Guns 79A - Ammunition, Explosives, & Pyrotechnics
Corporate Authors	Army Armament Research and Development Command, Aberdeen Proving Ground, MD. Ballistic Research Lab.; Shared Bibliographic Input.
Supplemental Notes	Presented at the 1981 JANNAF Propulsion Meeting, May 81 in New Orleans, LA.
Document Type	Technical Report
Title Note	Technical rept.
NTIS Issue Number	198225