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Moving surfaces and interfaces : application to damage, fracture and wearcontact

Institut GeM, Ecole Centrale de Nantes CNRS UMR6183, F-44321 Nantes Cedex 3, IMSIAEdF-CEA-CNRS UMR9219, Universit´e Paris Saclay, 828 Bvd Mar´echaux, F-91762 PalaiseauCedex, France

Topical Section: Thin films, surfaces and interfaces

The full scenario of the degradation of solids under mechanical loading is described by modelling the gradual loss of rigidity. This common approach is purely local. Another way to describe the damage evolution is to consider the propagation of the surface separating sound material and damaged material. When this surface is moving, a flux of matter is induced, that is useful for describing the loss of material during wear mechanisms or brittle fracture. The article proposes modelling of moving surface and interface in order to describe such behaviours. The problem of evolution is written, analysis of stability and bifurcation of the propagation is also presented. Applications to brittle fracture, transition from fracture to damage and wear contact are briefly investigated.
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