TY - JOUR
T1 - Quantitative fatigue limit prediction of mechanically long crack under mixed modes based on fracture mechanics and fatigue mechanism
AU - Chen, Bowen
AU - Hamada, Shigeru
AU - Kato, Takanori
AU - Makino, Taizo
AU - Noguchi, Hiroshi
N1 - Funding Information:
This work was supported by the JST SPRING (grant number JPMJSP2136).
Publisher Copyright:
© 2022 Elsevier Ltd
PY - 2023/2
Y1 - 2023/2
N2 - To predict the fatigue limit with a mechanically long crack under mixed modes based on the fracture mechanics, fatigue tests were conducted with an inclined notch. As a result, damage accumulation (DA) mode of fatigue crack propagation was found to occur from the crack tip. The DA mode is caused by the formation and coalescence of micro-voids. Therefore, the method of modifying the initial crack length by considering the DA mode crack propagation length has shown potential application in fatigue limit prediction. Moreover, a classification method of DA and normal modes is proposed.
AB - To predict the fatigue limit with a mechanically long crack under mixed modes based on the fracture mechanics, fatigue tests were conducted with an inclined notch. As a result, damage accumulation (DA) mode of fatigue crack propagation was found to occur from the crack tip. The DA mode is caused by the formation and coalescence of micro-voids. Therefore, the method of modifying the initial crack length by considering the DA mode crack propagation length has shown potential application in fatigue limit prediction. Moreover, a classification method of DA and normal modes is proposed.
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U2 - 10.1016/j.ijfatigue.2022.107371
DO - 10.1016/j.ijfatigue.2022.107371
M3 - Article
AN - SCOPUS:85141920315
SN - 0142-1123
VL - 167
JO - International Journal of Fatigue
JF - International Journal of Fatigue
M1 - 107371
ER -