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A model of damage c...
A model of damage coupled to wear
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- Ireman, Peter (author)
- Linköpings universitet,Tekniska högskolan,Mekanik,Department of Mechanical Engineering, Linköping University, Linköping, Sweden
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- Klarbring, Anders (author)
- Linköpings universitet,Tekniska högskolan,Mekanik,Department of Mechanical Engineering, Linköping University, Linköping, Sweden
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- Strömberg, Niclas (author)
- Linköpings universitet,Tekniska högskolan,Mekanik,Department of Mechanical Engineering, Linköping University, Linköping, Sweden
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(creator_code:org_t)
- Elsevier, 2003
- 2003
- English.
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In: International Journal of Solids and Structures. - : Elsevier. - 0020-7683 .- 1879-2146. ; 40:12, s. 2957-2974
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Abstract
Subject headings
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- 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.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Maskinteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Mechanical Engineering (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Maskinteknik -- Teknisk mekanik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Mechanical Engineering -- Applied Mechanics (hsv//eng)
Keyword
- Contact
- Continuum thermodynamics
- Damage
- Fretting
- Friction
- Gradient of damage
- Internal variables
- Wear
- TECHNOLOGY
- TEKNIKVETENSKAP
- Engineering mechanics
- Maskinteknik
Publication and Content Type
- ref (subject category)
- art (subject category)
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