TY - JOUR
T1 - Crystal plasticity FEM study of material and mechanical effects on damage accumulation mode of fatigue crack propagation
AU - Chen, Bowen
AU - Hamada, Shigeru
AU - Li, Wanjia
AU - Noguchi, Hiroshi
N1 - Funding Information:
The computation was conducted using the computer resources offered under the category of General Projects by the Research Institute for Information Technology, Kyushu University. One of the authors (Bowen Chen) acknowledges the support of the JST SPRING [grant number JPMJSP2136]. One of the authors (Wanjia Li) acknowledges the support of the China Scholarship Council, China [CSC, No.202008050165] during his research period at Kyushu University.
Publisher Copyright:
© 2023 Elsevier Ltd
PY - 2023/8
Y1 - 2023/8
N2 - To quantify the material and mechanical effects on the damage accumulation (DA) mode of fatigue crack propagation (FCP), a crystal plasticity finite element method was used in a polycrystalline copper specimen. Thus, the plastic normal strain localization ahead of the notch root, which is correlated with DA-FCP, was analyzed. As a result, an equation of the critical grain size formulated by the Schmid factor, misorientation angle, and plastic zone size is proposed to characterize the critical occurrence condition for the DA-FCP. Moreover, a method for predicting the DA-FCP region size is proposed.
AB - To quantify the material and mechanical effects on the damage accumulation (DA) mode of fatigue crack propagation (FCP), a crystal plasticity finite element method was used in a polycrystalline copper specimen. Thus, the plastic normal strain localization ahead of the notch root, which is correlated with DA-FCP, was analyzed. As a result, an equation of the critical grain size formulated by the Schmid factor, misorientation angle, and plastic zone size is proposed to characterize the critical occurrence condition for the DA-FCP. Moreover, a method for predicting the DA-FCP region size is proposed.
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U2 - 10.1016/j.ijfatigue.2023.107683
DO - 10.1016/j.ijfatigue.2023.107683
M3 - Article
AN - SCOPUS:85153583175
SN - 0142-1123
VL - 173
JO - International Journal of Fatigue
JF - International Journal of Fatigue
M1 - 107683
ER -