Within the last decade there has been an increasing awareness that use of standards deeply notched fracture mechanics test specimens can result in substantial over-or-under-assessments of the real fracture toughness associated with shallow surface cracks.
References
^ Woodhead Publishing Series in Welding and Other Joining Technologies Ser.: Shallow Crack Fracture Mechanics Toughness Tests and Applications : First International Conference by Welding Institute Staff, M. G. Dawes, TWI Ltd Staff and Gyoujin Cho (Trade Paper) ISBN 9781855731226 (revised May 2020)^ Shallow Crack Fracture Mechanics Toughness Tests And Applications: First International Conference VitalSource. ISBN 9781855731226 (revised Jul 2018)
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