Transient frictionless contact of a rough rigid surface on a viscoelastic half-space

The contact problem of a rough, rigid surface with an elastic or viscoelastic incompressible semi-infinite body is studied in this paper. The problem is solved using a Boundary Element Method coupled with a conjugate gradient method. Viscoelasticity is taken into account with a ‘State Variable’ appr...

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Bibliographic Details
Published in:	Tribology international Vol. 113; pp. 279 - 285
Main Authors:	Bugnicourt, R., Sainsot, P., Lesaffre, N., Lubrecht, A.A.
Format:	Journal Article
Language:	English
Published:	Kidlington Elsevier Ltd 01-09-2017 Elsevier BV Elsevier
Subjects:	Boundary element method Computational fluid dynamics Conjugate gradient method Friction Frictionless contact Half spaces Mechanics Mechanics of materials Physics Roughness Sliding contact State variable Tribology Viscoelasticity Sliding contact Boundary element method Roughness
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Summary:	The contact problem of a rough, rigid surface with an elastic or viscoelastic incompressible semi-infinite body is studied in this paper. The problem is solved using a Boundary Element Method coupled with a conjugate gradient method. Viscoelasticity is taken into account with a ‘State Variable’ approach, making it possible to tackle the transient problem efficiently. The results are compared against Persson's theory of transient viscoelastic contact, showing good agreement in terms of contact area ratio and friction coefficient. •A novel implementation of viscoelasticity in a Boundary Element Method.•Results of transient viscoelastic contact on a rough surface.•Comparison to Persson's 2002 model.
ISSN:	0301-679X 1879-2464
DOI:	10.1016/j.triboint.2017.01.032