SYMPOSIA PAPER Published: 01 January 1988
STP27702S

Comparison Between Experimental and Analytical (Including Empirical) Results of Crack Growth Initiation Studies on Surface Cracks

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Surface-cracked specimens are used to simulate the behavior of structures containing defects. For these ferritic steel specimens, the test temperatures of 255 and 297 K corresponded to the lower shelf and the lower region of the ductile-brittle transition curve, respectively. Therefore, the conditions tested ranged from elastic to elastic-plastic to fully plastic with only small changes in tensile properties but substantial changes in fracture toughness. This paper compares experimental results based on crack initiation for the surface-cracked specimens with predictions of JIc and on an empirical correlation using the flow stress.

Author Information

Reuter, WG
Idaho National Engineering Laboratory, EG&G Idaho, Inc., Idaho Falls, ID
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Details
Developed by Committee: E08
Pages: 59–81
DOI: 10.1520/STP27702S
ISBN-EB: 978-0-8031-5064-5
ISBN-13: 978-0-8031-1258-2