2. Elastoplastic indentation
2.1 Hollow cavity expansion model
Historically, this model was proposed to account for fairly early experimental observations such as those shown in figure 5. The metallurgical investigation of the plastic deformation field reveals the following facts:
the deformation field extends far below the surface, contrary to the predictions of RPP body deformation models ;
isodeformation curves are semicircles centered on the end of the indentor;
This facies is valid for both low-hardenable and hardenable metals, except that...
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Elastoplastic indentation
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"Studies and properties of metals"
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