RA-based fretting fatigue life prediction method of Ni-based single crystal superalloys

Li, Lei; Yang, Weizhu; Yue, Zhufeng; Wan, Huan

doi:10.1016/j.triboint.2019.01.036

Cited by 12 publications

(1 citation statement)

References 49 publications

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“…To eliminate the influence of special contact geometry, studies on material fretting were aimed at establishing a more general model through a contact pair of a fretting pad and matrix. [30][31][32][33][34][35][36][37][38][39] Although the contact pressure and the tangential force can be settled separately in the tests, the real contact state and the local stress distribution under the contact pad, however, could not be accurately determined due to the minimum relative rotations. Those tests contained significant scattering in experimental data.…”

Section: Introductionmentioning

confidence: 99%

Experimental and computational investigation of fretting fatigue characterized by nominal contact pressure in dovetail structures

Guo

Li²,

Cao³

et al. 2022

Fatigue Fract Eng Mat Struct

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The present work is aimed at establishing an engineering design method for fretting fatigue based on experimental and computational investigation of dovetail structures made of nickel‐based superalloy. Severe stress gradients and surface wear damage make fretting fatigue difficult to be assessed based on conventional fatigue life models. With the help of detailed experimental investigations and finite element computations, a fretting fatigue life model based on the nominal pressure on the dovetail contact surfaces was related to the nonlocal multiaxial fatigue analysis. The derived fretting design method based on the nominal pressure shows a life prediction distribution within the double‐scatter band and agrees with experiments fairly well. The present model provides an efficient and easy‐to‐use design method for engineering applications.

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