INTERNAL STRAINS IN GUN FORGINGS.
310
Tube 11791 B2.
Breech Slice.
State of internal strains and stresses at different phases of the slice.
SLICE INTACT.
Interior diameter of slice, 4".77; exterior diameter of slice, 10".46.
Rings..	Present mean diameters.	Strains.		Stresses per square inch.	
		Tension.	Compres- sion.	Tension.	Compres- sion.
	Inches. 4.92875 5.6460 9.6463 10.2899	Inch.	Inch. .0072 .0030	Pounds.	Pounds. 43,800 15,900
					
		.0054 .00145		16,800 4,200	
					
					
Rings 1 and 4 detached; rings 2 and 3 in the slice.
Interior diameter of slice, 5".5; exterior diameter of slice, 9".8.
i	3 2	——־־U T 1 _l	L		4		
Rings.	Present mean diameters.	Strains.		Stresses per square inch.	
		Tension.	Compres- sion.	Tension.	Compres- sion.
	Inches. 4.93595 5.64465 9.6454 10.28845	Inch.	Inch.	Pounds.	Pounds.
2				.00435		23,100
3			.0045		14,000	
					
					
RINGS ALL DETACHED.
	5.6490 9.6409			!