INTERNAL STRAINS IN GUN FORGINGS.
220
Tube 11249 B־.
Breech Slice.
($•" discard.)
State of internal strains and stresses at different phases of the slice.
SLICE INTACT.
Interior diameter of slice, 4".74; exterior diameter of slice, 10".36.
3 4
Rings.	Present mean diameters.	Strains.		Stresses per square inch.	
		Tension.	Compres- sion.	Tension.	Compres- sion.
	Inches. 4.90915 5.6495 9.6404 10.2066	Inch.	Inch. . 00725 .00375	Pounds.	Pounds. 44,300 19,900
					
		.00535		16,600	
			.00035		1,000
					
Rings 1 and 4 detached; rings 2 and 3 in the slice.
Interior diameter of slice, 5".50; exterior diameter of slice, 9".80.
Rings.	Present mean diameters.	Strains.		Stresses per square inch.	
		Tension.	Compres- sion.	Tension.	Compres- sion.
	Inches. 4.9164 5.6478 9.63925 10.20695	Inch.	Inch.	Pounds.	Pounds.
			. 00545		28,900
		.0042		13,100	
					
					
RINGS ALL DETACHED.
					
	9.63505