Prediction of fretting fatigue life of Ti-6Al-4V titanium alloy based on path selection method
MEN Haojie
NIU Zhiqiang
DENG Ying
ZHOU Wenlong
CHEN Guoqing
FU Xuesong
GAI Pengtao
Abstract：[Objective]Fretting fatigue widely occurs in numerous engineering components and can drastically reduce their service life.Due to the complexity of fretting fatigue problems,a universal fatigue life prediction method applicable to diverse fretting fatigue loading conditions has not yet been established.It is essential to verify the applicability of the path selection method(PSM),which integrates the point approach and multiaxial fatigue criteria,for predicting the fretting fatigue life of Ti-6Al-4V under various fretting fatigue conditions.[Methods]Two sets of fretting fatigue test data of Ti-6Al-4V alloy under cylinder-on-flat and flat-on-flat contact configurations were adopted.The PSM integrated with four types of multiaxial fatigue criteria was employed to predict fretting fatigue life,and the predicted results were compared and analyzed against test data.[Results]The results reveal that taking the path with the minimum predicted life screened by the PSM as the life prediction path of the point method is valid for fretting fatigue life prediction of Ti-6Al-4V alloy under flat-on-flat contact configuration,and can also accurately estimate fatigue life under other fretting loading conditions.
Keywords：Fretting fatigueLife predictionTheory of critical distanceMultiaxial fatiguePath selection method
Publication Date：2026-07-31
Online Publishing Date：2026-09-12(First online date of this platform, not the publication date of the document)
Pages：11( 1-11 )