The RED criterion for fatigue life assessment of metals under non-proportional loading

Ronchei, Camilla; Carpinteri, Andrea; Scorza, Daniela; Zanichelli, Andrea; Vantadori, Sabrina

doi:10.1016/j.ijfatigue.2022.107080

Cited by 7 publications

(1 citation statement)

References 26 publications

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“…Furthermore, Ti‐6Al‐4V specimens were used for test, which verified the accuracy of the criterion. In this regard, Ronchei et al 24 also presented a new criterion for engineering components, which is applicable to different metals with two different non‐proportional sensitivities. Ma et al 25 used commercial pure titanium as the research object to perform fatigue experiment under stress‐controlled conditions, and the results suggested that the additional strengthening of the material and the control model are independent.…”

Section: Introductionmentioning

confidence: 99%

Fatigue life prediction of notched components under size effect based on strain energy density gradient

Lu,

Liu,

et al. 2024

Fatigue Fract Eng Mat Struct

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In practical mechanical components, the characteristic of geometric discontinuous generates non‐uniform energy field near the notch, which affects the local damage evolution process of the notched specimens. Therefore, it is particularly crucial to formulate a parameter that can characterize such inhomogeneous state distribution. First, a strain energy density gradient factor is introduced to describe the complexity of strain energy density distribution near the notch. Meanwhile, a size effect factor is given considering the strain energy gradient factor and notch geometry parameter. Then, taking into account the impact of phase difference, a direct damage parameter considering non‐proportionality of different multiaxial load levels is developed. Furtherly, the modified strain energy density parameter is determined. Finally, the comparison between the proposed model and the other three models emphasizes the advantages of the model.

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Section: Introductionmentioning

confidence: 99%