Transversely isotropic viscoelastic materials: Contact mechanics and friction

Transversely isotropic materials are a unique group of materials whose properties are the same along two of the three principal axes. Various natural and artificial materials behave effectively as transversely isotropic elastic solids therefore this specific case of anisotropy has several engineerin...

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Bibliographic Details
Published in:Tribology international 2016-05, Vol.97, p.116-123
Main Authors: Mokhtari, M., Schipper, D.J., Vleugels, N., Noordermeer, J.W.M.
Format: Article
Language:English
Subjects:
Anisotropy
Contact
Contact model
Elastic anisotropy
Friction
Mathematical models
Muscles
Piezoelectricity
Real area of contact
Transversely isotropic viscoelastic solid
Tribology
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Summary:Transversely isotropic materials are a unique group of materials whose properties are the same along two of the three principal axes. Various natural and artificial materials behave effectively as transversely isotropic elastic solids therefore this specific case of anisotropy has several engineering and industrial applications. Various components can be classified as transversely isotropic materials including crystals, rocks, piezoelectrics, biological tissues such as muscles, skin, cartilage tissue or brainstem and fibrous composites. In this study, the theory of contact mechanics developed by Persson is extended in such a way that it can model the contact and friction of a transversely isotropic viscoelastic solid in contact with a rigid rough surface. Numerical results show that anisotropy should be taken into account when dealing with transversely isotropic solids. The experimental results validate the theory. •Contact and friction of transversely isotropic viscoelastic materials are modelled.•The sensitivity of the presented model to different parameters are studied.•The model is validated experimentally.
ISSN:0301-679X
1879-2464
DOI:10.1016/j.triboint.2016.01.010