A method to model crystalline anisotropy in contact using semi-analytical method

被引：4

作者：

Beyer, Thibault ^{[1
,2
]}

Chaise, Thibaut ^{[1
]}

Leroux, Julien ^{[2
]}

Sadeghi, Farshid ^{[3
]}

Nelias, Daniel ^{[1
]}

机构：

[1] Univ Lyon, INSA Lyon, CNRS, LaMCoS,UMR5259, F-69621 Villeurbanne, France

[2] Ctr Villaroche, Safran Aircraft Engines, F-77550 Moissy Cramayel, France

[3] Purdue Univ, Sch Mech Engn, W Lafayette, IN 47907 USA

来源：

TRIBOLOGY INTERNATIONAL | 2020年 / 152卷

关键词：

Contact mechanics; Semi-analytical methods (SAM); Voronoi tessellation; Rolling contact fatigue (RCF); Eshelby's equivalent inclusion method (EIM); Inhomogeneity; Eigenstrain; ELASTIC-PLASTIC CONTACT; ROLLING-CONTACT; HALF-SPACE; DISCRETE CONVOLUTION; NUMERICAL-SIMULATION; SURFACE-ROUGHNESS; FRETTING WEAR; STRESS-FIELD; FATIGUE; MICROSTRUCTURE;

D O I：

10.1016/j.triboint.2020.106429

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

In this paper, the contact problem between a cylinder and a half-space with a crystalline anisotropic behavior is solved. The model is based on semi-analytical methods to solve a three dimensional contact problem. A numerical technique based on a Voronoi tessellation is implemented using the Eshelby's equivalent inclusion method to account for the effect of the material microstructure on the contact pressure distribution and subsurface stresses. Fast Fourier Transforms (3D and 2D) are used to reduce the computation cost of the simulations. An application of this method to compute the scatter in fatigue life of rolling element bearings is also presented. Three different critical stresses are used in the Lundberg-Palmgren equation and results are compared in term of Weibull plot slope.

引用

页数：13

共 93 条

[1] Fully Coupled Resolution of Heterogeneous Elastic-Plastic Contact Problem [J].