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Vol.12, No2, 2012, pp.125–129
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NUMERICAL SIMULATION IN COATED MATERIALS: MODEL OF CRACK PROPAGATION BI-MATERIAL Zitouni Azari1, Caterina Casavola2, Carmine Pappalettere2, Catalin Iulian Pruncu2 1)Laboratoire de Mécanique, Biomécanique, Polymères, Structures (LaBPS), Ecole Nationale d’Ingénieurs de Metz, Université Paul Verlaine de Metz, France 2)Dipartimento di Ingegneria Meccanica e Gestionale, Politecnico di Bari, Italy, c.pruncu@poliba.it |
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Abstract From the simple device to complex assembly, protection against corrosion is the most important treatment. As well as known, this treatment could be done in different varieties in the function of available resources and depending on economic price. Most of the time, protection is made with the use of one material, that holds the highest anti-corrosion characteristics, through a form of a thin film layer. Among various materials, zinc may be considered as one. Zinc could be applied under the thin layer during the hot dip galvanized steel process. During this procedure of steel coating, some cracks are initiated in the intermetallic layer δ and spread in the layered surface of the zinc coating. For the simulation of this process we use the finite element method (FEM). The realization of modelling is done in the bi-material steel-zinc model, using the computer software application Abaqus 6.10.1. Keywords: stress intensity factors, intermetallic layer, crack propagation, bi-material |
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