Influencing the Indentation Curves by the Bluntness of the Berkovich Indenter at the Fem Modelling

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dc.contributor.authorKovář, Jaroslavcs
dc.contributor.authorFuis, Vladimírcs
dc.contributor.authorTomáštík, Jancs
dc.coverage.issue1cs
dc.coverage.volume27cs
dc.date.issued2020-06-01cs
dc.description.abstractThe influence of the Berkovich indenter bluntness on the indentation curves at nanoindentation test of fused silica is determined by the FEM (finite element method) in this paper. The Berkovich indenter, which is mostly used for the nanoindentation test, was assumed for calculations. The indenter is always blunted in real tests. The bluntness of the indenter has an influence on the results of the nanoindentation test. The combination of the nanoindentation test and the FE modelling can be used for the calculation of the parameters of fused silica plasticity and estimation of the bluntness of the indenter. In this paper, the FEM was used for calculating of the indentation curves. Two cases of bluntness were assumed. The curves for ideally sharp or blunted indenter were determined. The results of these calculations showed that the indentation curves are dependent on the bluntness of the Berkovich indenter. The greatest relative influence of the nanoindentation curves by the bluntness is in the area of small values of the indenter displacement. The impact of assuming blunted indenter to calculated parameters of plasticity was assessed. It is often difficult to measure the bluntness of the indenter but it has an influence on the results of the nanoindentation test and should be included into calculations to make it more precise.en
dc.formattextcs
dc.format.extent131-135cs
dc.format.mimetypeapplication/pdfcs
dc.identifier.citationActa Polytechnica CTU Proceedings. 2020, vol. 27, issue 1, p. 131-135.en
dc.identifier.doi10.14311/APP.2020.27.0131cs
dc.identifier.isbn978-80-01-06735-2cs
dc.identifier.issn2336-5382cs
dc.identifier.orcid0000-0002-8174-9974cs
dc.identifier.orcid0000-0002-2329-2849cs
dc.identifier.other164306cs
dc.identifier.urihttp://hdl.handle.net/11012/193418
dc.language.isoencs
dc.publisherActa polytechnica CTU proceedingscs
dc.relation.ispartofActa Polytechnica CTU Proceedingscs
dc.relation.urihttps://ojs.cvut.cz/ojs/index.php/APP/article/view/6706cs
dc.rightsCreative Commons Attribution 4.0 Internationalcs
dc.rights.accessopenAccesscs
dc.rights.sherpahttp://www.sherpa.ac.uk/romeo/issn/2336-5382/cs
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/cs
dc.subjectBerkovich indenteren
dc.subjectbluntnessen
dc.subjectfinite element methoden
dc.subjectnanoindentationen
dc.titleInfluencing the Indentation Curves by the Bluntness of the Berkovich Indenter at the Fem Modellingen
dc.type.driverconferenceObjecten
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
sync.item.dbidVAV-164306en
sync.item.dbtypeVAVen
sync.item.insts2025.02.03 15:49:11en
sync.item.modts2025.01.17 16:49:44en
thesis.grantorVysoké učení technické v Brně. Fakulta strojního inženýrství. Ústav mechaniky těles, mechatroniky a biomechanikycs
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