Published: Jan 1973
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Three experimental techniques for developing the crack resistance curve and plane stress fracture toughness using center cracked panels are reviewed. One technique involving a plasticity characterization based on the crack opening stretch is discussed in detail.
Experimental data for a variety of materials and thicknesses are presented which show the equivalence of the various methods for determining the crack resistance curve.
crack propagation, fracture toughness, strains, stresses, loads (forces) measurement, aluminum alloys, stainless steels, fracture strength, fracture tests, evaluation
Metallurgist, Frankford Arsenal, Philadelphia, Pa.