INTEENAL STEAINS IN GUN FOEGINGS. 270 Tube 11775 B4 MO. Muzzle Slice. State of internal strains and stresses at different phases of the slice. SLICE INTACT. Interior diameter of slice, 4".24; exterior diameter of slice, 8".57. Rings. Present mean diameters. Strains. Stresses per square inch. Tension. Compres- sion. Tension. Compres- sion. Inches. 4.3910 5.14985 7.1538 8.40345 Inch. Inch. . 00365 .00265 Pounds. Pounds. 24,900 15,400 .0028 .00435 11,700 15,500 Rings 1 and 4 detached; rings 2 and 3 in the slice. Interior diameter of slice, 5".00; exterior diameter of slice, 7".30. 1 3 o ■1 *־ \ ¿. — 1 1־ J L 4 1 Rings. Present mean diameters. Strains. Stresses per square inch. Tension. Compres- sion. Tension. Compres- sion. Inches. 4.39465 5.1497 7.15385 8.3991 Inch. Inch. Pounds. Pounds. .0028 16,300 .00285 12,000 KINGS ALL DETACHED. 5.1525 7.1510