Sa, M.V.C., Ferreira, J.L.A., da Silva, C.R.M. and Araújo, J.A. (2018) The Role of the Shear and Normal Stress Gradients on Life Estimation of Notched Al7050-T7451 under Multiaxial Loadings. Theoretical and Applied Fracture Mechanics, 97, 38-47.
https://doi.org/10.1016/j.tafmec.2018.07.006

has been cited by the following article:

• TITLE: Study on Fatigue Life Prediction of TC4-DT Structural Simulants by Using Critical Distance Theory

  AUTHORS: Taiyu Piao, Xiaoan Hu

  KEYWORDS: Notched Fatigue, Critical Distance, Stress Concentration, Stress Gradient

  JOURNAL NAME: World Journal of Engineering and Technology, Vol.12 No.2, May 13, 2024

  ABSTRACT: In the actual engineering of the structure, mechanical notch is inevitable, which will significantly reduce the fatigue life of the structure. In order to ensure the application of notch structures in engineering, the accurate evaluation of the impact of notch on fatigue life has become the basis of fatigue reliability design of structures. To investigate the influence of the concave structure on the overall fatigue life in practical engineering, three different sizes of V-notch parts and concave structure simulation parts were designed, and the life prediction was carried out by using the critical distance method. The results show that the stress gradient of the concave structure with the same stress concentration coefficient is much greater than that of the V-notch structure. Considering the notch effect, the S-T model in the critical distance method is modified by the stress concentration coefficient and stress gradient, and it is found that the life prediction accuracy reaches the ideal.