Yanju Wang1, Zhenyu Zhu2, Aixue Sha1, Wenfeng Hao3,*
CMES-Computer Modeling in Engineering & Sciences, Vol.136, No.3, pp. 2655-2676, 2023, DOI:10.32604/cmes.2023.025749
Abstract Many titanium alloy subcomponents are subjected to fatigue loading in aerospace engineering, resulting in fatigue
failure. The fatigue behavior of Ti2AlNb 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 Ti2AlNb alloy standard
open-hole specimen was verified. Meanwhile, the fatigue life of Ti2AlNb alloy Y-section subcomponents was
predicted. Under the same initial conditions, the… More >
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