Abstract
The effects of grain size and precracking load on the critical stress intensity factor are studied. A plane stress model of elastic-plastic stress distribution which includes the strain hardening effects is used. The effects of residual stresses and strain hardening due to fatigue load are calculated by choosing plastic zone size as fracture criterion. Experimental results are obtained to demonstrate the reliability of theoretical calculations.
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Doong, JL., Hwang, JR. & Chen, HS. Influences of grain size and precracking load on the critical stress intensity factor of mild steel. J Mater Sci 22, 612–616 (1987). https://doi.org/10.1007/BF01160777
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DOI: https://doi.org/10.1007/BF01160777