TY - JOUR
T1 - Research on mixed mode crack drilling under out-of-plane shear in steel bridge deck
AU - Fang, Liang
AU - Fu, Zhongqiu
AU - Ji, Bohai
AU - Kainuma, Shigenobu
N1 - Funding Information:
This work is sponsored by the National Key Research and Development Program of China (No. 2017YFE0128700) and the Fundamental Research Funds for the Central Universities (No. B200202078 ). The assistance is gratefully acknowledged.
Publisher Copyright:
© 2021 Elsevier Ltd
PY - 2022/3
Y1 - 2022/3
N2 - The stop-hole stress characteristics under out-of-plane shear (mode III) were compared with that under in-plane tension (I) and shear (II). Drilling effect of mixed mode I & III cracks were analyzed. The result shows that drilling for mode III cracks can achieve a better effect. The stop-hole life Ni is related to component failure life Nf, elastic modulus, stress intensity factor KI and hole radius R. The ratio Ni/Nf is linear to hole edge strain and KI/R, through which the hole life in real bridges can be evaluated. Critical and reasonable hole diameters can also be determined after measuring KI.
AB - The stop-hole stress characteristics under out-of-plane shear (mode III) were compared with that under in-plane tension (I) and shear (II). Drilling effect of mixed mode I & III cracks were analyzed. The result shows that drilling for mode III cracks can achieve a better effect. The stop-hole life Ni is related to component failure life Nf, elastic modulus, stress intensity factor KI and hole radius R. The ratio Ni/Nf is linear to hole edge strain and KI/R, through which the hole life in real bridges can be evaluated. Critical and reasonable hole diameters can also be determined after measuring KI.
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U2 - 10.1016/j.ijfatigue.2021.106679
DO - 10.1016/j.ijfatigue.2021.106679
M3 - Article
AN - SCOPUS:85120689541
SN - 0142-1123
VL - 156
JO - International Journal of Fatigue
JF - International Journal of Fatigue
M1 - 106679
ER -