TY - JOUR
T1 - Titanium alloy corrosion fatigue crack growth rates prediction
T2 - Peridynamics based numerical approach
AU - Karpenko, Olena
AU - Oterkus, Selda
AU - Oterkus, Erkan
PY - 2022
Y1 - 2022
N2 - This study presents a numerical approach for modelling the Corrosion Fatigue Crack Growth (CFCG) in conventional casting and additively manufactured Ti6Al4V alloys. The proposed numerical model, based on Peridynamics (PD), combines the PD Fatigue Crack Growth (FCG) model and PD diffusion model in order to couple the mechanical and diffusion fields existing in the material due to the impact of environmental fatigue. The mechanical field is responsible for the characterisation of the changes to the structure due to the fatigue loading conditions. The diffusion field is based on the modelling of the adsorbed-hydrogen Stress Corrosion Cracking (SCC), in particular, the Hydrogen Embrittlement (HE) model is considered. The proposed approach has been validated using experimental data available in the literature showing the capability of the tool to predict the CFCG rates.
AB - This study presents a numerical approach for modelling the Corrosion Fatigue Crack Growth (CFCG) in conventional casting and additively manufactured Ti6Al4V alloys. The proposed numerical model, based on Peridynamics (PD), combines the PD Fatigue Crack Growth (FCG) model and PD diffusion model in order to couple the mechanical and diffusion fields existing in the material due to the impact of environmental fatigue. The mechanical field is responsible for the characterisation of the changes to the structure due to the fatigue loading conditions. The diffusion field is based on the modelling of the adsorbed-hydrogen Stress Corrosion Cracking (SCC), in particular, the Hydrogen Embrittlement (HE) model is considered. The proposed approach has been validated using experimental data available in the literature showing the capability of the tool to predict the CFCG rates.
KW - Additive Manufacturing
KW - Corrosion fatigue
KW - Crack growth prediction
KW - Hydrogen Embrittlement
KW - Peridynamics
KW - Stress corrosion cracking
UR - http://www.scopus.com/inward/record.url?scp=85131056416&partnerID=8YFLogxK
U2 - 10.1016/j.ijfatigue.2022.107023
DO - 10.1016/j.ijfatigue.2022.107023
M3 - Article
AN - SCOPUS:85131056416
SN - 0142-1123
VL - 162
JO - International Journal of Fatigue
JF - International Journal of Fatigue
M1 - 107023
ER -