TY - GEN
T1 - Modeling stress corrosion cracking growth rates based upon the effect of stress/strain on crack tip interface degradation and oxidation reaction kinetics
AU - Shoji, Tetsuo
AU - Lu, Zhanpeng
AU - Das, Nishith Kumar
AU - Murakami, Hiroyoshi
AU - Takeda, Yoichi
AU - Ismail, Tirtom
PY - 2010
Y1 - 2010
N2 - Quantitative prediction of environmentally assisted cracking such as stress corrosion cracking is one of the greatest concerns in lifetime management and consequent lifetime extension of light water reactors. Continuum mechanics has been applied to quantify the effect of crack tip mechanics on crack tip film degradation and its physical interaction with the oxidation kinetics. Besides such an effect, it has been realized that crack tip stress/strain can significantly affect the oxidation kinetics by a physical-chemical mode. The present paper focuses on optimizing crack tip asymptotic fields, oxidation kinetics laws, and their interaction modes for modeling stress corrosion cracking growth rates. Meanwhile, the physical-chemical effect of stress/strain on solid state oxidation kinetics at the stress corrosion crack tip is emphasized. The criteria for formulating stress corrosion cracking and optimizing input parameters are also discussed.
AB - Quantitative prediction of environmentally assisted cracking such as stress corrosion cracking is one of the greatest concerns in lifetime management and consequent lifetime extension of light water reactors. Continuum mechanics has been applied to quantify the effect of crack tip mechanics on crack tip film degradation and its physical interaction with the oxidation kinetics. Besides such an effect, it has been realized that crack tip stress/strain can significantly affect the oxidation kinetics by a physical-chemical mode. The present paper focuses on optimizing crack tip asymptotic fields, oxidation kinetics laws, and their interaction modes for modeling stress corrosion cracking growth rates. Meanwhile, the physical-chemical effect of stress/strain on solid state oxidation kinetics at the stress corrosion crack tip is emphasized. The criteria for formulating stress corrosion cracking and optimizing input parameters are also discussed.
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U2 - 10.1115/PVP2009-77615
DO - 10.1115/PVP2009-77615
M3 - Conference contribution
AN - SCOPUS:77952966184
SN - 9780791843697
T3 - American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP
SP - 1081
EP - 1100
BT - Proceedings of the ASME Pressure Vessels and Piping Conference 2009 - Materials and Fabrication
T2 - 2009 ASME Pressure Vessels and Piping Conference
Y2 - 26 July 2009 through 30 July 2009
ER -