A new integrated system consisting of a testing machine, denominated Diaptometro, and of an algorithm for metallic materials identification via instrumented spherical indentation testing is presented. The experimental load L– penetration depth ℎ curve (L − ℎ curve) are collected from shallow indentation tests, thus preventing friction effects in the material properties estimation, and used in a inverse analysis based on the numerical simulation of the indentation process for a wide range of metallic materials. Accuracy in the experimental data acquisition and in the L − ℎ curve representation were recognized to be the key factors for reliable and accurate estimations. A new experimental equipment was specifically built-up, whereas a four-terms power expansion showed to be very effective for modeling the L − ℎ curve. Experimental validation campaigns confirm the effectiveness of the adopted solutions.
|Autori interni:||BEGHINI, MARCO|
MONELLI, BERNARDO DISMA
|Autori:||Beghini M.; Bertini L.; Bosio L.; Fontanari V.; Monelli B. D.|
|Titolo:||Metals identification from instrumented spherical indentation testing|
|Anno del prodotto:||2013|
|Digital Object Identifier (DOI):||10.4028/www.scientific.net/AMR.718-720.745|
|Appare nelle tipologie:||1.1 Articolo in rivista|