INTERNAL STRAINS IN GUN FORGINGS.
260
Tube 11775 B2.
Measurements taken on four diameters.
Breech Slice.
State of internal strains and stresses at different phases of the slice. Measurements on diameters A and B.
Slice Intact.
Interior diameter of slice, 4".65; exterior diameter of slice, 10".40.
Rings.	Present mean diameters.	Strains.		Stresses per square inch.	
		Tension.	Compres- sion.	Tension.	Compres- sion.
	Inches. 4.79025 5.6484 9.64295 10.2296	Inch.	Inch. . 00415 .0026	Pounds.	Pounds. 26,000 13,800
		1			
		.0045 .0016		14,000 4,700	
					
					
Rings 1 and 4 detached; rings 2 and 3 in the slice.
Interior diameter of slice, 5".5; exterior diameter of slice, 9".8.
Rings.	Present mean diameters.	Strains.		Stresses per square inch.	
		Tension.	Compres- sion.	Tension.	Compres- sion.
	Inches. 4.7944 5.64685 9.64195 10.2280	Inch.	Inch.	Pounds.	Pounds.
			. 00415		22,000
		.0035		10,900	
					
					
RINGS ALL DETACHED.
	5.6510 9.63845