A new technique to determine the elastoplastic properties of thin metallic films using sharp indenters

Jean-Luc Bucaille, Sven Stauss, Patrick Schwaller & Johann Michler
In recent years, nanoindentation has established itself as one of the most convenient techniques to assess the mechanical properties of thin films by measuring the force–penetration (F–h) curve during loading and unloading. However, the mechanical understanding of the indentation process itself, which involves several non-linearities (inelastic material behaviour, large and nonhomogeneous deformations), is very intricate and finite-element analysis is thus combined with experiments in order to develop methods allowing the determination of the flow stress....
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