TY - JOUR
T1 - Crack Growth Prediction for Irradiated Stainless Steels under the Combined Fatigue-Creep Loading
AU - Fuller, Robert W.
AU - Simsiriwong, Jutima
AU - Shamsaei, Nima
N1 - Fuller, R.W., Simsiriwong, J., Shamsaei, N. (2020). Crack growth prediction for irradiated stainless steels under the combined fatigue-creep loading. Theoretical and Applied Fracture Mechanics. 109, 102759. https://doi.org/10.1016/j.tafmec.2020.102759.
PY - 2020/10
Y1 - 2020/10
N2 - A methodology is presented in this study for estimating the crack growth of austenitic stainless steel Types 304, 304L, 316, and 316L, which are commonly used as structural materials in nuclear pressure vessels. These structural components are typically subjected to neutron irradiation and combined loadings, including repeated mechanical stresses (i.e., fatigue) resulting from startups and shutdowns, as well as creep due to on-load periods at elevated temperature. In this study, the fatigue crack length was estimated using a strip-yield based fatigue crack growth model. The model is extended to include the effects of creep deformation in a presence of hold- times, and expanded to include the effects of irradiation. Reasonable crack growth estimations are obtained for selected materials under various combined loading conditions when compared to the experimental data available in the literature.
AB - A methodology is presented in this study for estimating the crack growth of austenitic stainless steel Types 304, 304L, 316, and 316L, which are commonly used as structural materials in nuclear pressure vessels. These structural components are typically subjected to neutron irradiation and combined loadings, including repeated mechanical stresses (i.e., fatigue) resulting from startups and shutdowns, as well as creep due to on-load periods at elevated temperature. In this study, the fatigue crack length was estimated using a strip-yield based fatigue crack growth model. The model is extended to include the effects of creep deformation in a presence of hold- times, and expanded to include the effects of irradiation. Reasonable crack growth estimations are obtained for selected materials under various combined loading conditions when compared to the experimental data available in the literature.
KW - strip-yield model
KW - neutron irradiation
KW - creep-fatigue
KW - elevated temperature
KW - crack growth estimation
UR - https://www.sciencedirect.com/science/article/pii/S0167844220303359
U2 - 10.1016/J.TAFMEC.2020.102759
DO - 10.1016/J.TAFMEC.2020.102759
M3 - Article
SN - 0167-8442
VL - 109
JO - Theoretical and Applied Fracture Mechanics
JF - Theoretical and Applied Fracture Mechanics
M1 - 102759
ER -