@Article{cmes.2023.025749,
AUTHOR = {Yanju Wang, Zhenyu Zhu, Aixue Sha, Wenfeng Hao},
TITLE = {Numerical Simulation of Low Cycle Fatigue Behavior of Ti<sub>2</sub>AlNb Alloy Subcomponents},
JOURNAL = {Computer Modeling in Engineering \& Sciences},
VOLUME = {136},
YEAR = {2023},
NUMBER = {3},
PAGES = {2655--2676},
URL = {http://www.techscience.com/CMES/v136n3/51819},
ISSN = {1526-1506},
ABSTRACT = {Many titanium alloy subcomponents are subjected to fatigue loading in aerospace engineering, resulting in fatigue
failure. The fatigue behavior of Ti<sub>2</sub>AlNb alloy subcomponents was investigated based on the Seeger fatigue life
theory and the improved Lemaitre damage evolution theory. Firstly, the finite element models of the standard openhole specimen and Y-section subcomponents have been established by ABAQUS. The damage model parameters
were determined by fatigue tests, and the reliability of fatigue life simulation results of the Ti<sub>2</sub>AlNb alloy standard
open-hole specimen was verified. Meanwhile, the fatigue life of Ti<sub>2</sub>AlNb alloy Y-section subcomponents was
predicted. Under the same initial conditions, the average error of fatigue life predicted by two different models
was 20.6%. Finally, the effects of loading amplitude, temperature, and Y-interface angle on fatigue properties of
Ti<sub>2</sub>AlNb Y-section subcomponents were investigated. These results provide a new idea for evaluating the fatigue
life of various Ti<sub>2</sub>AlNb alloy subcomponents.},
DOI = {10.32604/cmes.2023.025749}
}