INTERNAL STRAINS IN GUN FORGINGS.
308
Tube 11791 Br Muzzle Slice.
State of internal strains and stresses at different phases of the slice.
SLICE INTACT.
Interior diameter of slice, 4". 18; exterior diameter of slice, 8".62.
Rings.	Present mean diameters.	Strains.		Stresses per square inch.	
		Tension.	Compres- sion.	Tension.	Compres- sion.
1		Indies. 4.32185 5.1477 7.1474 8.37425	Indi.	Indi. .00375 .0008	Pounds.	Pounds. 26,000 4,700
2						
3			.00225		9,400	
4...			.00195		7,000
					
Rings 1 and 4 detached; rings 2 and 3 in the slice.
Interior diameter of slice, 5".00; exterior diameter of slice, 7".30.
Rings.	Present mean diameters.	Strains.		Stresses per square inch.	
		Tension.	Compres- sion.	Tension.	Compres- sion.
	Inches. 4.3256 5.14675 7.1466 8.3762	Inch.	Inch.	Pounds.	Pounds.
2				. 00175		10,200
3	....		.00145		6,100	
					
					
RINGS ALL DETACHED.
	5.1485 7.14515