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Stress—Strain Behaviour of thin films using a Spherical Tipped Indenter
Published online by Cambridge University Press: 22 February 2011
Abstract
The stress—strain behaviour of metallic and polymer thin films are measured using a spherical indenter. A modification of the Hertzian analysis enables the elastic to plastic transition to be analyzed so that the variation of mean pressure versus depth can be calculated. The stress—strain behaviour is then calculated from the mean indentation strain using a relationship proposed by Tabor[l]. Observations of high precision load displacement data generated with a UMIS—2000 instrument are analyzed on the basis of the simple analysis developed. The measured values are compared with simulated data for the same materials.
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- Copyright © Materials Research Society 1992
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