INTERNAL STRAINS IN GUN FORGINGS.
268
Tube 11775 B4 MM.
Muzzle Slice.
State of internal strains and stresses at different phases of the slice.
SLICE INTACT.
Interior diameter of slice, ■4".23; exterior diameter of slice, 8".56.
Rings.	Present. mean diameters.	Strains.		Stresses per square inch.	
		Tension.	Compres- sion.	Tension.	Compres- sion.
1		Inches. 4. 3816 5.1454 7.14455 8.4049	Inch.	Inch. .00395 .0024	Pounds.	Pounds. 27.000 14.000
2						
3			.00515 .00195		21,600 7,000	
4						
					
Kings 1 and 4 detached; rings 2 and 3 in the slice.
Interior diameter of slice, 5".00; exterior diameter of slice, 7".30..
1	3 2	——	~r T 1 J	L		i		
Rings.	Present mean diameters.	Strains.		Stresses per square inch.	
		Tension.	Compres- sion.	Tension.	Compres- sion.
	Inches. 4. 38555 5.1449 7.1443 8.40295	Inch.	Inch.	Pounds.	Pounds.
2				.0029		16,900
3				.0049		20,600	
					
					
RINGS ALL DETACHED.
	5.1478 7.1394