INTERNAL STRAINS IN GUN FORGINGS. 314 Tube 11794 B6. Breech Slice. (f" discard.) State of internal strains and stresses at different phases of the slice. SLICE INTACT. Interior diameter of slice, 4".75; exterior diameter of slice, 10".45. Rings. Present mean diameters. Strains. Stresses per square inch. Tension. Compres- sion. Tension. Compres- sion. 1 Inches. 4.9100 5.65355 9.6488 10.2982 Inch. Inch. .0051 .00145 Pounds. Pounds. 31,200 7,700 2 3. .00405 .00155 12,600 4,500 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 i Rings. Present mean diameters. Strains. Stresses per square inch. Tension. Compres- sion. Tension. Compres- sion. Inches. 4.9151 5.6523 4.64775 10.29665 Inch. Inch. Pounds. Pounds. 2 .0027 14,300 3 .0030 9,300 RINGS ALL DETACHED. 5.6550 9.64475 1