References
L.M. Barker, Engineering Fracture Mechanics 9 (1977) 361–369.
ASTM E 399–84, Standard Method of Test for Plane-Strain Fracture Toughness of Metallic Materials.
A. Balul, “Report of Research Works Fund-1”, Institute of Materials Science, Warsaw (1985) not published.
A. Balul, Proceedings of the Second Conference on Fracture Mechanics, Kielce, Poland (1987) 13–19.
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Balul, A. A correction for the effect of relative notch length error on the Barker test results. Int J Fract 39, R19–R22 (1989). https://doi.org/10.1007/BF00047456
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DOI: https://doi.org/10.1007/BF00047456