Simulation numérique de la rayure des matériaux
Keywords:
scratch, numerical simulation, remeshing, viscoelasticity, viscoplasticityAbstract
The scratch test is generally used to study friction and wear phenomena and to locally identify the mechanical properties of materials. The complexity of material and interface behaviours makes difficult the analysis of this test. The use of finite element simulations helps to improve the understanding of this process. In this paper, a remeshing procedure specially developed for numerical modelling of scratch test is described. Then, an application concerning the study of scratching speed effects on viscoelastic and elastic viscoplastic solids is proposed. Effects on the deformed shape of the surface and on the friction coefficient are also studied.
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