Finite element analysis of rig used for fretting experiments

Pandi, R. Raja; Kaliveeran, Vadivuchezhian

doi:10.1016/j.matpr.2019.09.126

Cited by 1 publication

(2 citation statements)

References 21 publications

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“…Based on the thermodynamic framework proposed by Lemaitre 40 and Chaboche et al, Xiao et al 41 proposed a continuous damage accumulation model considering the influence of mean stress and deduced the evolution process of damage variables, which can well predict the fatigue life dominated by elastic strain, as disclosed in Equation (5).…”

Section: A-w Fatigue Damage Evolution Equationmentioning

confidence: 99%

“…Fretting is a small (0.1-300 μm) repeated periodic relative sliding or rolling motion or motion state between the contact surfaces of two components under the action of cyclic loading. 1,2 The fretting fatigue damage caused by fretting, commonly known as "cancer" in industry, extensively exists in aerospace, 3 rail transit, 4 oil pipelines, 5 biomedicine, 6 wind power generation, 7 and other fields, seriously restricting the actual service life of key components. 8,9 As the key component of the aero-engine, the compressor blades are served in the environment of "three high and one long" (high temperature, high pressure, high speed, and long-term reciprocating cycle).…”

Section: Introductionmentioning

confidence: 99%

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Experimental study and fretting fatigue life prediction in dovetail assembly considering stress–temperature nonlinear coupling effect

Sun

Gao

Huo

2023

Fatigue Fract Eng Mat Struct

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As a paramount failure form of dovetail assembly, high‐temperature fretting fatigue seriously restricts the actual service life. Aiming at the problem of fretting fatigue life prediction of dovetail assembly of the aero‐engine compressor under the coexistence of stress and high temperature, based on D‐M contact theory and continuum damage mechanics theory, a fretting fatigue life prediction model considering stress–temperature nonlinear coupling effect is proposed in this paper by, respectively, introducing the fretting fatigue stress σfretting and the high‐temperature influence factor λ. Meanwhile, the judgment criterion of fretting fatigue crack initiation and failure is raised based on the strain–displacement method, and the fretting fatigue test is designed and carried out for experimental verification. The results show that the proposed fretting fatigue life prediction model has high life prediction ability, whose life prediction results are within ±1.7 times the error band, which can provide a theoretical reference for the structural design optimization and damage tolerance design of dovetail assembly.

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Section: A-w Fatigue Damage Evolution Equationmentioning

confidence: 99%