A numerical and effective method for the contact stress calculation of elliptical partial slip

Li, Xiaoyong; Liang, Liang; Wu, Shijing

doi:10.1007/s12206-015-0112-3

Cited by 4 publications

(3 citation statements)

References 27 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…They proposed a new empirical formula based on FEA results for different ellipticities of the ellipsoid to estimate the elastoplastic range and corresponding contact parameters. Chung 53 and Li et al 54 analysed contact stress evolution during the loading process. Recently, Becker and Kamlah 55 studied the loading and unloading contact behaviour of two lithium cobalt nickel manganese oxide (NMC) ellipsoidal asperities under a normal force using the discrete element method and FEM.…”

Section: Introductionmentioning

confidence: 99%

Analysis of Elastic-Plastic Loading and Unloading Contact between Ellipsoid and Rigid Flat

Zhang

Chen

Wang

et al. 2022

Proceedings of the Institution of Mechanical Engineers, Part J:

View full text Add to dashboard Cite

The loading contact behaviour of ellipsoids has been extensively studied, although there is limited research on their loading and unloading contact behaviour. This study uses the finite element method to analyse loading and unloading contact between an elastic-plastic ellipsoid and a rigid body. Unloading of an ellipsoid with different ellipticities was precisely conducted at the end of the elastic-plastic state. The ellipticity of the contact area is related to interference during loading and is independent of interference during unloading. When the interference is sufficiently large, the ellipticity of the contact area asymptotically approaches that of the ellipsoid. A new empirical formula is presented to describe the residual plastic interference of the ellipsoid after elastic-plastic unloading. The ellipsoid contact parameters (contact pressure, contact load, interference, and contact area) during the loading and unloading processes are numerically fitted based on the finite element analysis results, and dimensionless expressions are proposed for practical applications. The correctness and validity of the current study are evaluated through comparison with the prediction results of previous models and experiments.

show abstract

Section: Introductionmentioning

confidence: 99%

Analysis of Elastic-Plastic Loading and Unloading Contact between Ellipsoid and Rigid Flat

Zhang

Chen

Wang

et al. 2022

Proceedings of the Institution of Mechanical Engineers, Part J:

View full text Add to dashboard Cite

show abstract

“…This hemispherical contact model was mainly based on the assumption of isotropic contact on a rough surface. Different machining methods can produce asperities with different curvatures because rough surface textures are oriented according to the direction of the tool's motion relative to the rough surface [35]. Bush et al [36] speculated that a rough surface consists of ellipsoidal asperities with an anisotropic distribution.…”

Section: Introductionmentioning

confidence: 99%

Effect of Strain Hardening and Ellipticity on Elastic–Plastic Contact Behaviour between Ellipsoids and Rigid Planes

et al. 2022

View full text Add to dashboard Cite

The contact behaviour between an ellipsoid and a rigid plane is significant in research on bearing and assembly joint surfaces. However, an empirical relationship between an elastic–plastic ellipsoid and a rigid plane has not been established. In this study, the elastic–plastic contact behaviour between a deformable ellipsoid and a rigid plane was investigated by establishing a new finite element model. The proposed elastic–plastic ellipsoid contact model was designed considering the effects of the ellipticity and strain-hardening rate of the ellipsoid. The strain-hardening rate and ellipticity of the ellipsoid affected the contact area, load and mean pressure. Furthermore, the effect gradually increased with an increase in interference. New dimensionless empirical formulas for determining the contact load and contact area were proposed based on the analysis. The proposed model was validated by comparing the obtained results with previous experimental results and those of theoretical models. This study can be used to predict the elastic–plastic contact parameters between a single ellipsoid and a rigid body, such as bearings, gears and cams. It can also be used to investigate the elastic–plastic contact behaviour between anisotropic rough surfaces composed of asperities with different radii of curvature.

show abstract

“…Nevertheless, when the contact analysis and surface micro-topography deformation analysis are carried out for a specific surface, it is obviously impossible to make elliptical contact simplified. [16][17][18] Bush et al 19 assumed that the shape of asperities is ellipsoidal and analyzed the contact deformation with Hertz contact model. Therefore, the model is limited to the Hertz contact theory and only considers the elastic deformation.…”

Section: Introductionmentioning

confidence: 99%

A new elliptical microcontact model considering elastoplastic deformation

Yan

Tang

Zhou

et al. 2018

Proceedings of the Institution of Mechanical Engineers, Part J:

View full text Add to dashboard Cite

A new elliptical microcontact model considering elastoplastic deformation is proposed to overcome the shortcomings of the existing elastoplastic microcontact model. A new low-order interpolation function is used to describe the relationship between the normal deformation of asperity and the mean contact pressure in the elastoplastic deformation stage, and a smooth, continuous, monotonic change curve of the mean contact pressure is obtained. Then, the contact of rough surfaces is studied based on the new elastoplastic elliptical microcontact model and the height distribution of asperity. The calculated results are compared with those obtained from the existing rough surface contact models and the comparisons show that: (1) the change curve for the average contact pressure in the new model is smooth, continuous, and monotonic; (2) the calculation results of the new model are consistent with the numerical results based on the finite element method; (3) the new model is helpful to study the rough surface contact analysis of the elliptical microconvex body.

show abstract

A numerical and effective method for the contact stress calculation of elliptical partial slip

Cited by 4 publications

References 27 publications

Analysis of Elastic-Plastic Loading and Unloading Contact between Ellipsoid and Rigid Flat

Analysis of Elastic-Plastic Loading and Unloading Contact between Ellipsoid and Rigid Flat

Effect of Strain Hardening and Ellipticity on Elastic–Plastic Contact Behaviour between Ellipsoids and Rigid Planes

A new elliptical microcontact model considering elastoplastic deformation

Contact Info

Product

Resources

About