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Fracture toughness testing is a new approach to measuring the specific conditions under which low-ductility fracture will take place as a result of a crack developing in an elastic stress field. It appears to be independent of the type of crack growth. The development of fracture-toughness test procedures is reviewed, and the areas of current interest are identified. Implications to the materials engineer and designer are suggested.
fracture, fracture mechanics, fracture toughness, tests, plane strain, specimen design, fatigue (materials), cracking (fracturing), design, stresses
Kaufman, J. G.
Section headPersonal member of ASTM, Aluminum Company of America, New Kensington, Pa.