Investigation on the plasticity accumulation of Ti-6Al-4V fretting wear by decoupling the effects of wear and surface profile in finite element modelling

Tobi, Abdul Latif Mohd; Sun, Wei; Shipway, P.H.

doi:10.1016/j.triboint.2016.12.009

Cited by 19 publications

(5 citation statements)

References 19 publications

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“…The mesh refinement showed convergence towards the peak analytical solution for the shear traction. Finally, according to the results, a 2 µ m × 2 µ m element size is used around the contact zone, which is smaller than in most of the previous numerical studies [8,[32][33][34][35][36][37][38]. The simulation results and the theoretical results may not be exactly the same, due to numerical errors and geometric constraints [67].…”

Section: Finite Element Model and Validationmentioning

confidence: 99%

“…For experimental methods, it is difficult to get the details of stress field and initiation of crack. Therefore, numerical modeling is an efficient way to solve the problem of fretting fatigue [8,[32][33][34][35][36][37][38] and fracture [39][40][41][42][43]. However, only few studies have taken into account the heterogeneity of material under fretting fatigue conditions [14,44,45].…”

Section: Introductionmentioning

confidence: 99%

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Numerical Modeling of the Effect of Randomly Distributed Inclusions on Fretting Fatigue-Induced Stress in Metals

Deng

Bhatti

Yin

et al. 2018

Metals

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The analysis of fretting fatigue plays an important role in many engineering fields. The presence of heterogeneity may affect the performance of a machine or a structure, including its lifetime and stability. In this paper, the effect of randomly distributed micro inclusions on the fretting fatigue behaviour of heterogeneous materials is analysed using the finite element method (FEM) for different sizes, shape and properties of inclusions. The effect of micro inclusions on macroscopic material properties is also considered by representative volume element (RVE). It is shown that the influence of micro inclusions on macroscopic material properties cannot be ignored, and the shape and size of the inclusions have less effect on the macroscopic material properties as compared to the material properties of inclusion and volume ratio. In addition, various parameters of inclusions have little effect on the peak tensile stress, which remains almost the same as homogeneous material. Peak shear stress occurs at many places inside the specimen, which can result in multiple cracking points inside the specimen, as well as at the contact surface. Moreover, the stress band formed by the stress coupling between adjacent inclusions may have an important influence on the direction of crack growth.

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Section: Finite Element Model and Validationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Numerical Modeling of the Effect of Randomly Distributed Inclusions on Fretting Fatigue-Induced Stress in Metals

Deng

Bhatti

Yin

et al. 2018

Metals

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show abstract

“…Therefore, the peak value cannot be reached again when the cylinder moves to the far-right side of contact unless the relative slip amplitude is much greater than the contact zone. This phenomenon is explained in [37,38]. Another interesting phenomenon is that the plasticity decreases with the number of cycles, and the plastic strain on both tailing and leading edges increases with the number of cycles.…”

Section: Flat Specimenmentioning

confidence: 88%

“…Materials 2021, 14, x FOR PEER REVIEW 11 of much greater than the contact zone. This phenomenon is explained in [37,38]. Anoth interesting phenomenon is that the plasticity decreases with the number of cycles, and t plastic strain on both tailing and leading edges increases with the number of cycles.…”

Section: Flat Specimenmentioning

confidence: 95%

A Numerical Study on the Effect of Variable Wear Coefficient on Fretting Wear Characteristics

Wang

Wahab

2021

Materials

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Fretting wear is a common phenomenon that happens between contact parts when there is an oscillatory relative movement. To investigate wear characteristics history in the fretting process, the finite element method (FEM) is commonly applied to simulate the fretting by considering the wear in the model. In most literature publications, the wear coefficient is considered as a constant, which is not a real case based on the experimental results. To consider the variation of wear coefficient, a double-linear model is applied in this paper, and the tribologically transformed structure (TTS) phase is considered in the study of the wear coefficient variation model. By using these models for variable wear coefficient for both flat and cylinder, the difference of wear characteristics, plastic strain, and stress between variable wear coefficient model (VWCM) and constant wear coefficient model (CWCM) are analyzed. The results show that the variable wear coefficient has no significant effect on the wear characteristic at the end of the process in the gross sliding regime. However, in the partial slip regime, the effect of variable wear coefficient on wear characteristics is significant. Due to the difference in contact geometry in the fretting process between VWCM and CWCM, the tangential and shear stress and equivalent plastic strain also show differences during the fretting process.

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“…In the study of Mohd et al [Mohd Tobi, Ding, Bandak et al (2009)], the evolution of plastic variables and effects of plasticity during fretting wear were analyzed using a kinematic hardening plasticity model for the cyclic plasticity behaviour description. Mohd et al also investigated the accumulation of plastic strain in fretting wear decoupling wear effects [Mohd Tobi, Sun and Shipway (2017)]. Predicted results showed that significant plasticity accumulation existed due to plastic shakedown in the partial slip condition, while a saturation of plastic deformation occurs under gross sliding condition.…”

Section: Neglecting Debris Effectsmentioning

confidence: 99%

A Review on Fretting Wear Mechanisms, Models and Numerical Analyses

Yue¹,

Wahab²

2019

Computers, Materials &Amp; Continua

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Fretting wear is a material damage in contact surfaces due to micro relative displacement between them. It causes some general problems in industrial applications, such as loosening of fasteners or sticking in components supposed to move relative to each other. Fretting wear is a complicated problem involving material properties of tribosystem and working conditions of them. Due to these various factors, researchers have studied the process of fretting wear by experiments and numerical modelling methods. This paper reviews recent literature on the numerical modelling method of fretting wear. After a briefly introduction on the mechanism of fretting wear, numerical models, which are critical issues for fretting wear modelling, are reviewed. The paper is concluded by highlighting possible research topics for future work.

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Investigation on the plasticity accumulation of Ti-6Al-4V fretting wear by decoupling the effects of wear and surface profile in finite element modelling

Cited by 19 publications

References 19 publications

Numerical Modeling of the Effect of Randomly Distributed Inclusions on Fretting Fatigue-Induced Stress in Metals

Numerical Modeling of the Effect of Randomly Distributed Inclusions on Fretting Fatigue-Induced Stress in Metals

A Numerical Study on the Effect of Variable Wear Coefficient on Fretting Wear Characteristics

A Review on Fretting Wear Mechanisms, Models and Numerical Analyses

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