TY - JOUR
T1 - Fatigue limit evaluation of blunt-notched specimen using Δk th value of small crack (1st report
T2 - Study on the determination of the initial crack size with annealed carbon steel when stress ratio is zero)
AU - Matsueda, Takahiro
AU - Aono, Yuuta
AU - Noguchi, Hiroshi
N1 - Copyright:
Copyright 2020 Elsevier B.V., All rights reserved.
PY - 2011
Y1 - 2011
N2 - The fatigue limit of a blunt-notched specimen is dependent on the fatigue crack initiation limit δw1. δw1 is the propagating limit of the micro fatigue crack at notch root. However, before now no method for evaluating the δw1 based on fatigue crack properties had ever been proposed. In this paper, it is suggested that the initial crack size is dependent on the relationship between the application limit of the characteristic elastic field of the notch and the fatigue crack length measured from the notch root. It is also found that when the initial crack size is given, sw1 can be evaluated from the threshold stress intensity factor range ΔKth.
AB - The fatigue limit of a blunt-notched specimen is dependent on the fatigue crack initiation limit δw1. δw1 is the propagating limit of the micro fatigue crack at notch root. However, before now no method for evaluating the δw1 based on fatigue crack properties had ever been proposed. In this paper, it is suggested that the initial crack size is dependent on the relationship between the application limit of the characteristic elastic field of the notch and the fatigue crack length measured from the notch root. It is also found that when the initial crack size is given, sw1 can be evaluated from the threshold stress intensity factor range ΔKth.
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U2 - 10.1299/kikaia.77.228
DO - 10.1299/kikaia.77.228
M3 - Article
AN - SCOPUS:84856358922
VL - 77
SP - 228
EP - 232
JO - Nihon Kikai Gakkai Ronbunshu, A Hen/Transactions of the Japan Society of Mechanical Engineers, Part A
JF - Nihon Kikai Gakkai Ronbunshu, A Hen/Transactions of the Japan Society of Mechanical Engineers, Part A
SN - 0387-5008
IS - 773
ER -