TY - JOUR
T1 - Effect of strain localization on fatigue properties of precipitation-hardened steel with an arbitrarily length crack
AU - Verma, Virendra Kumar
AU - Gopalakrishnan, C. K.
AU - Hamada, Shigeru
AU - Yokoi, Tatsuo
AU - Noguchi, Hiroshi
N1 - Publisher Copyright:
© 2020 Elsevier Ltd
Copyright:
Copyright 2020 Elsevier B.V., All rights reserved.
PY - 2021/2
Y1 - 2021/2
N2 - The present study deals with fatigue crack propagation and fatigue limit properties of two precipitation-hardened steels. One steel is more susceptible to strain localization than other. Both steels have similar tensile and micro-hardness properties. The fatigue properties are compared for a plain specimen, a specimen with a short crack and with a long crack. Effect of strain localization on fatigue properties of precipitation-hardened steel with an arbitrarily length crack is discussed with the help of plasticity-induced crack closure. The superiority of fatigue limit for precipitation-hardened steel depends on the initial crack size, and the strain localization influences notch sensitivity.
AB - The present study deals with fatigue crack propagation and fatigue limit properties of two precipitation-hardened steels. One steel is more susceptible to strain localization than other. Both steels have similar tensile and micro-hardness properties. The fatigue properties are compared for a plain specimen, a specimen with a short crack and with a long crack. Effect of strain localization on fatigue properties of precipitation-hardened steel with an arbitrarily length crack is discussed with the help of plasticity-induced crack closure. The superiority of fatigue limit for precipitation-hardened steel depends on the initial crack size, and the strain localization influences notch sensitivity.
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U2 - 10.1016/j.ijfatigue.2020.106017
DO - 10.1016/j.ijfatigue.2020.106017
M3 - Article
AN - SCOPUS:85094880189
SN - 0142-1123
VL - 143
JO - International Journal of Fatigue
JF - International Journal of Fatigue
M1 - 106017
ER -