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Search: authors:"A.M.S. Dias"

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Simulação do ensaio de indentação em filmes finos com o uso de modelos de trinca difusa

The aim of the present study was simulate the cycle of indentation test with spherical indenters in a system composed of thin surface coating deposited on a metallic substrate through PVD process by finite element models. Recent studies suggest that the indentation technique could be used as a tool to evaluate mechanical properties of thin films, as well as to determinate the...

Análise numérica do ensaio de indentação em materiais com comportamento frágil

The experimental indentation testing is a methodology used during decades to obtain the surface hardness of different kinds of materials. Nowadays, these tests have been reported in the literature as a reliable tool for mechanical properties determination, such as hardness, Young modulus, yielding stress and fracture toughness. However, the implementation of this indentation...