INTERNAL STRAINS IN GUN FORGINGS.
280
Tube 11784 B!.
Muzzle Slice.
Bore eccentric, ".15, maximum and minimum thickness on diameter A. State of internal strains and stresses at different phases of the slice.
SLICE INTACT.
Interior diameter of slice, 4".20; exterior diameter of slice, 8".58.
Rings.	Present mean diameters.	Strains.		Stresses per square inch.	
		Tension.	Compres- sion.	Tension.	Compres- sion.
	Inches. 4.3563 5.13715 7.14395 8.15025	Inch.	Inch. . 00495 . 0022	Pounds.	Pounds. 34,100 12,800
					
		. 00385 .0012		16,200 4,400	
					
					
Rings 1 and 4 detached; rings 2 and 3 in the slice.
Interior diameter of slice, 5".00; exterior diameter of slice, 7".30.
3 4
Rings.	Present mean diameters.	Strains.		Stresses per square inch.	
		Tension.	Compres- sion.	Tension.	Compres- sion.
	Inches. 4.36125 5.13545 7.14265 8.14905	Inch.	Inch.	Pounds.	Pounds.
			.0039		22,800
		.00255		10,700	
					
					
RINGS ALL DETACHED.
	5.13935 7.1401