A numerical model for the point contact of dissimilar materials considering tangential tractions

Chen, W. Wayne; Wang, Q. Jane

doi:10.1016/j.mechmat.2008.06.002

Cited by 84 publications

(66 citation statements)

References 23 publications

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“…We can see in Fig. 10 (a) that the stick zone decreases and it is moved to the left side of the contact zone (opposite to the tangential load direction) when the normalized tangential load increases, as it is expected [33]. Meanwhile, Fig.…”

Section: Tangential Load Response Of An Orthotropic Mee Solidsupporting

confidence: 54%

3D coupled multifield magneto-electro-elastic contact modelling

Rodríguez-Tembleque

Buroni

Sáez

2016

International Journal of Mechanical Sciences

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Highlights-A numerical procedure for the three-dimensional frictional contact modelling of anisotropic coupled magneto-electro-elastic materials in presence of both electric and magnetic fields is presented.-An orthotropic frictional law is considered, so anisotropy is present both in the bulk and in the surface.-The methodology uses the boundary element method with explicit evaluation of the fundamental solutions in order to compute the magneto-electro-elastic influence coefficients.-The contact model is based on an augmented Lagrangian formulation and it uses an iterative Uzawa scheme of resolution.-Conducting, semi-conducting and insulated electric and/or magnetic indentation conditions, as well as orthotropic frictional contact conditions are considered.-The methodology is validated by comparison with benchmark analytical solutions. Then, additional exploration examples are presented and discussed in detail, revealing that magnetoelectric material coupling, conductivity contact conditions lead to a significant effect on the indentation force and contact pressure distributions.-The influence of friction in electric and magnetic potential responses has been also proved to be very significant. Moreover, tangential loads exhibit an important influence both on the maximum values of the electric and magnetic potentials as well as on their distributions. AbstractThe present work deals with the general contact problem for coupled magnetoelectro-elastic materials. Despite of the relevant technological applications, this topic of research has been treated only in some analytical works. But analytical solutions lack the generality of numerical methodologies, being restricted typically to simple geometries, loading conditions, idealized contact conditions and mostly taking into account transversely isotropic material symmetry with the symmetry axis normal to the contact surface. In this work, a numerical procedure for the three-dimensional frictional contact modelling of anisotropic coupled magneto-electro-elastic materials in presence of both electric and magnetic fields is presented for the first time. An orthotropic frictional law is considered, so anisotropy is present both in the bulk and in the surface. The methodology uses the boundary element method with explicit evaluation of the fundamental solutions in order to compute the magneto-electro-elastic influence coefficients. The contact model is based on an augmented Lagrangian formulation and it uses an iterative Uzawa scheme of resolution. Conducting, semi-conducting and insulated electric and/or magnetic indentation conditions, as well as orthotropic frictional contact conditions are considered. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 coupling, conductivity contact conditions lead to a significant effect on the indentation force and contact pressure dis...

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Section: Tangential Load Response Of An Orthotropic Mee Solidsupporting

confidence: 54%

3D coupled multifield magneto-electro-elastic contact modelling

Rodríguez-Tembleque

Buroni

Sáez

2016

International Journal of Mechanical Sciences

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“…Because of the high temperature and mass flow, the contact material surface is severely corroded and eroded, which results in erratic contact resistance and material loss. Therefore, an electrical contact material should have high electrical and thermal conductivity, high melting point and high resistance to the environmental reaction, as well as high arc erosion to maintain contact integrity [62][63][64][65]. Cu is a good candidate material due to its high thermal and electrical conductivity, but it has a high coefficient of thermal expansion (CTE).…”

Section: Cu/cnt Contact Materials Prepared By Ccementioning

confidence: 99%

Research and Application of CNT Composite Electroplating

Wang¹,

Deng²,

Cui³

et al. 2011

Carbon Nanotubes - From Research to Applications

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“…As opposed to the finite element method, which needs a very fine mesh and a large calculating domain, SAM requires the computation to be made only on the contact domain involved [4]. Due to these advantages, SAM is extensively employed in a variety of cases to understand the complicated tribological phenomena including running-in [17][18][19], fretting [20][21][22] and partialslip [23][24][25] based on the rough surface contact calculation.…”

Section: Introductionmentioning

confidence: 99%

A numerical-analytical approach to determining the real contact area of rough surface contact

Wang

Schipper

2020

Tribology - Materials, Surfaces & Interfaces

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The objective of this study is to improve the accuracy of the real contact area calculated by the semi-analytical method (SAM). Two types of surface pairs are investigated: an analytically generated sinusoidal wavy surface against a rigid flat, and a pair of real rough surfaces. The results suggest that the real contact area calculated by the SAM is extremely sensitive to the resolution of input, i.e. the grid size. The SAM results of the real contact areas show poor convergence, especially in the case of the real rough surfaces. The main reason for this difference is the 'over-covering' effect when SAM calculates the real contact area. An exponential extrapolation technique is proposed to predict the real contact area values when further refinement of the grid resolution is unfeasible. ARTICLE HISTORY

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A numerical model for the point contact of dissimilar materials considering tangential tractions

Cited by 84 publications

References 23 publications

3D coupled multifield magneto-electro-elastic contact modelling

3D coupled multifield magneto-electro-elastic contact modelling

Research and Application of CNT Composite Electroplating

A numerical-analytical approach to determining the real contact area of rough surface contact

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