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A model of damage coupled to wear
Linköping University, The Institute of Technology. Linköping University, Department of Management and Engineering, Mechanics .
Linköping University, The Institute of Technology. Linköping University, Department of Management and Engineering, Mechanics .ORCID iD: 0000-0001-8460-0131
Linköping University, The Institute of Technology. Linköping University, Department of Management and Engineering, Mechanics .
2003 (English)In: International Journal of Solids and Structures, ISSN 0020-7683, E-ISSN 1879-2146, Vol. 40, no 12, 2957-2974 p.Article in journal (Refereed) Published
Abstract [en]

The present paper presents a model of damage coupled to wear. The damage model is based on a continuum model including the gradient of the damage variable. Such a model is non-local in the sense that the evolution of damage is governed by a boundary-value problem instead of a local evolution law. Thereby, the well-known mesh-dependency observed for local damage models is removed. Another feature is that the boundary conditions can be used to introduce couplings between bulk damage and processes at the boundary. In this work such a coupling is suggested between bulk damage and wear at the contact interface. The model is regarded as a first attempt to formulate a continuum damage model for studying crack initiation in fretting fatigue. The model is given within a thermodynamic framework, where it is assured that the principles of thermodynamics are satisfied. Furthermore, two variational formulations of the full initial boundary value problem, serving as starting points for finite element discretization, are presented. Finally, preliminary numerical results for a simple one-dimensional example are presented and discussed. It is qualitatively shown how the evolution of damage may influence the wear behaviour and how damage may be initiated by the wear process. © 2003 Elsevier Science Ltd. All rights reserved.

Place, publisher, year, edition, pages
2003. Vol. 40, no 12, 2957-2974 p.
Keyword [en]
Contact, Continuum thermodynamics, Damage, Fretting, Friction, Gradient of damage, Internal variables, Wear
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:liu:diva-46608DOI: 10.1016/S0020-7683(03)00121-5OAI: oai:DiVA.org:liu-46608DiVA: diva2:267504
Available from: 2009-10-11 Created: 2009-10-11 Last updated: 2017-12-13

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Ireman, PeterKlarbring, AndersStrömberg, Niclas

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