INTERNAL STRAINS IN GUN FORGINGS.
298
Tube 11791 B,.
Breech Slice.
(I" discard.)
State of internal strains and stresses at different phases of the slice.
slice intact.
Interior diameter of slice, 4". 81; exterior diameter of slice, 10".44.
3 4
Rings.	Present mean diameters.	Strains.		Stresses per square inch.	
		Tension.	Compres- sion.	Tension.	Compres- sion.
1		Inches. 4.9632 5.66435 9.65075	Inch.	Inch. .00385 .00095	Pounds.	Pounds. 23,300 5,000
2						
3			.0031 .00415		9,600 12,100	
4		10.2954				
					
Rings 1 and 4 detached; rings 2 and 3 in the slice.
Interior diameter of slice, 5". 5; exterior diameter of slice, 9". 8.
1	3		4		
Rings.	Present mean diameters.	Strains.		Stresses per square inch.	
		Tension.	Compres- sion.	Tension.	Compres- sion.
	Inches. 4.96705 5.66365 9. 65045 10.29125	Inch.	Inch.	Pounds.	Pounds.
2				.00165		8,700
3			.0028		8,700	
					
					
RINGS ALB DETACHED.
	5.6653 9.64765