INTERNAL STRAINS IN GUN FORGINGS
348
Tube 20691 B3.
Muzzle Slice.
State of internal strains and stresses at different phases of the slice.
SLICE INTACT.
Interior diameter of slice, 4".25; exterior diameter of slice, 9".01.
3 *
Rings.	Present mean diameters.	Strains.		Stresses per square inch.	
		Tension.	Compres- sion.	Tension.	Compres- sion.
1		Inches. 4.39405 5.1509 7.14615 8.8594	Inch.	Inch. . 00225 .0026	Pounds.	Pounds. 15,400 15,100
2						
3			. 0012 .0041		5,000 13,900	
					
					
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. 4.3963 5.15105 7.1470 8.8553	Inch.	Inch.	Pounds.	Pounds.
2				. 00245		14,300
3			.00205		8,600	
					
					
RINGS ALL DETACHED.
	5.1535 7.14495