000003693 001__ 3693
000003693 005__ 20141118153350.0
000003693 04107 $$acze
000003693 046__ $$k2013-05-13
000003693 100__ $$aKrálík, V.
000003693 24500 $$aSPHERICAL NANOINDENTATION APPLIED TO ALUMINIUM FOAM

000003693 24630 $$n19.$$pEngineering Mechanics 2013
000003693 260__ $$bInstitute of Thermomechanics AS CR, v.v.i., Praha
000003693 506__ $$arestricted
000003693 520__ $$2eng$$aNanoindentation is widely used for the assessment of micromechanical behavior of multiple phases within the material microstructure. Evaluation is often restricted to isotropic linearly elastic solids compared to engineering macroscopic tests in which stress–strain curves are analyzed to find variety of constitutive parameters (e.g. viscous, plastic). In this paper, we identify, in addition to the elastic properties, also inelastic properties that can be directly deduced from the load–depth curve of a spherical indentation test through formulations of the effective indentation strain and stress. The accuracy of the determined material properties derived from spherical indentation depends on the accurate knowledge of the indenter shape. Therefore, calibration and determining the exact geometry of the spherical tip compared with a conical tip is described in details.

000003693 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000003693 653__ $$aaluminium foam, porous system, spherical nanoindentation, micromechanical properties, plastic properties

000003693 7112_ $$aEngineering Mechanics 2013$$cSvratka (CZ)$$d2013-05-13 / 2013-05-16$$gEM2013
000003693 720__ $$aKrálík, V.$$iNěmeček, J.
000003693 8560_ $$ffischerc@itam.cas.cz
000003693 8564_ $$s987203$$uhttp://invenio.itam.cas.cz/record/3693/files/099_Kralik_V-FT.pdf$$y
             Original version of the author's contribution as presented on CD, SOL.
            
000003693 962__ $$r3632
000003693 980__ $$aPAPER