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This paper is a report of ASTM Task Group E24.01.05 on Part-Through Crack Testing. It includes recommendations for the design, preparation, and static fracture testing of surface crack specimens based on the current state of the art. The recommendations are preceded by background information including discussions of stress intensity factors, crack opening displacements, and fracture toughness values associated with surface crack specimens. Cyclic-load and sustained-load tests are discussed briefly. Recommendations for further research are included.
fracture tests, surface defects, cracks, fracture properties, fracture strength, toughness, mechanics
Chairman of ASTM Task Group E24.01.05 on Part-Through Crack Testing and research engineer, NASA Lewis Research Center, Cleveland, Ohio