SYMPOSIA PAPER Published: 01 January 1986

Comparison of Predicted Versus Experimental Stress for Initiation of Crack Growth in Specimens Containing Surface Cracks


Fracture mechanics concepts were used to evaluate the ability to predict the stress for crack initiation for specimens containing surface cracks. The comparison is made between the predicted stress (σpred) and the experimentally determined stress (σexp). The predictions were made for conditions ranging from elastic to plastic. The predictions were based on suggestions by P. Paris for modifying an equation developed for center-cracked panels. Acoustic emission techniques were used to detect the load corresponding to crack initiation.

Author Information

Reuter, WG
EG&G Idaho, Inc., Idaho Falls, ID
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Developed by Committee: E08
Pages: 644–660
DOI: 10.1520/STP17421S
ISBN-EB: 978-0-8031-4972-4
ISBN-13: 978-0-8031-0472-3