Kaufman, J. G.
Manager, Aluminum Company of America, New Kensington, Pa.
Schilling, P. E.
Engineer, Aluminum Company of America, New Kensington, Pa.
Pages: 8 Published: Jan 1973
One of the more troublesome parts of conducting a plane-strain fracture toughness test in accordance with ASTM Test for Plain Strain Fracture Toughness of Metallic Materials (E 399-72) is producing a satisfactory fatigue crack in the specimen prior to fracturing it. The 1968 version of ASTM E 399 indicated that the stress intensity during the last stage of fatigue cracking should not exceed 0.0012 in.½ E (modulus of elasticity) or 0.5
fracture properties, cracks, aluminum alloys, fracture strength, tests, modulus of elasticity, tests precracking
Paper ID: STP49648S