TY - GEN
T1 - Fatigue life prediction of corroded specimen
AU - Xiang, Y.
AU - Liu, Y.
PY - 2009/12/1
Y1 - 2009/12/1
N2 - A new methodology of fatigue life prediction for corroded specimens is proposed in this paper based on an equivalent initial flaw size (EIFS) methodology and a corrosion pit growth function. The proposed EIFS methodology is based on the Kitagawa diagram and the El Haddad model. Life prediction for smooth specimens is performed by employing the crack growth analysis starting from an assumed crack size determined by the EIFS. A growing semi-circular notch is assumed to exist on the specimen surface caused by the corrosive environments. An asymptotic solution is used for the stress intensity factor solution of a crack at the notch root. Fatigue life can be predicted using the crack growth analysis, in which a crack propagates from the notch root. Various experimental data for aluminum alloys and steels are used to validate the proposed methodology.
AB - A new methodology of fatigue life prediction for corroded specimens is proposed in this paper based on an equivalent initial flaw size (EIFS) methodology and a corrosion pit growth function. The proposed EIFS methodology is based on the Kitagawa diagram and the El Haddad model. Life prediction for smooth specimens is performed by employing the crack growth analysis starting from an assumed crack size determined by the EIFS. A growing semi-circular notch is assumed to exist on the specimen surface caused by the corrosive environments. An asymptotic solution is used for the stress intensity factor solution of a crack at the notch root. Fatigue life can be predicted using the crack growth analysis, in which a crack propagates from the notch root. Various experimental data for aluminum alloys and steels are used to validate the proposed methodology.
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M3 - Conference contribution
AN - SCOPUS:84869782916
SN - 9781617382277
T3 - 12th International Conference on Fracture 2009, ICF-12
SP - 2442
EP - 2451
BT - 12th International Conference on Fracture 2009, ICF-12
T2 - 12th International Conference on Fracture 2009, ICF-12
Y2 - 12 July 2009 through 17 July 2009
ER -