A damage model for fretting contact between a sphere and a half space using semi-analytical method. (1st June 2019)

• Record Type: Journal Article
• Authors: BEYER, Thibault; CHAISE, Thibaut; LEROUX, Julien; NELIAS, Daniel
• Is Part Of: International journal of solids and structures. Volume 164(2019)
• Page Start: 66
• Page End: 83
• Publication Date: 2019-06-01
• Subjects: Contact mechanics -- Semi-analytical methods (SAM) -- Damage mechanics -- Fretting -- Eshelby's equivalent inclusion method (EIM) -- Inhomogeneity -- Eigenstrain; Mechanics, Applied -- Periodicals; Structural analysis (Engineering) -- Periodicals; Elastic solids -- Periodicals; Mécanique appliquée -- Périodiques; Constructions, Théorie des -- Périodiques; Solides élastiques -- Périodiques; Elastic solids; Mechanics, Applied; Structural analysis (Engineering); Periodicals; 624.18
• DOI: 10.1016/j.ijsolstr.2019.01.009
• Languages: English
• ISSNs: 0020-7683

Abstract

Abstract: This paper presents a fast method of solving 3D contact problems when one of the mating bodies has an elastic-damageable behavior. The damage model is implemented in a semi-analytical model using Eshelby' s equivalent inclusion method in the contact solver. The proposed technique can be seen as an enrichment technique for which the effect of heterogeneous inclusions is surimposed on the homogeneous solution in the contact algorithm. Contact pressure and subsurface stress field computation time is kept small due to a massive use of 3D and 2D Fast Fourier Transforms. Cuboidal inclusions with the same size as the discretization of the half-space and with the same elastic properties are surimposed. The damage model affects the elastic properties of the cuboidal inclusions. The emphasis is put on the effects of the fretting regimes on the contact pressure and damage evolution.