Resumo

GUIZA, Ruben D.; MARTINEZ, Manuel; JAIMES, Ricardo A.  e  SANCHEZ, Ramón. SPHERICAL INDENTATION TECHNIQUE IN ELASTIC REGIME THROUGH FEM. Momento [online]. 2020, n.61, pp.11-23. ISSN 0121-4470.  https://doi.org/10.15446/mo.n61.84058.

In recent years new techniques have been developed for the study of materials, among which the indentation technique stands out. The experimental data obtained by this technique allow the evaluation of the mechanical behavior of the material at different microstructural levels. Recently, computer advances have allowed the evolution of tools that allow evaluating and predicting the behavior of different physical phenomena with the development of mathematical methods, among which are the so-called numerical methods. The present work studies the numerical modeling by finite elements of the indentation technique for its application in the estimation of the load vs. displacement curve; reviews the basics of the technique in order to establish the boundary conditions which must be subject the numerical model proposed. Where a computational model representative of the spherical indentation technique fulfills the purpose of validating the proposed geometric model based on the Hertz analytical equations.

Palavras-chave : Spherical indentation; Hertz analytical equations; finite element method.

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