Influencing the Indentation Curves by the Bluntness of the Berkovich Indenter at the Fem Modelling
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388998%3A_____%2F20%3A00535276" target="_blank" >RIV/61388998:_____/20:00535276 - isvavai.cz</a>
Nalezeny alternativní kódy
RIV/00216305:26210/20:PU136685 RIV/68378271:_____/20:00535276
Výsledek na webu
<a href="https://ojs.cvut.cz/ojs/index.php/APP/article/view/6706" target="_blank" >https://ojs.cvut.cz/ojs/index.php/APP/article/view/6706</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.14311/APP.2020.27.0131" target="_blank" >10.14311/APP.2020.27.0131</a>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Influencing the Indentation Curves by the Bluntness of the Berkovich Indenter at the Fem Modelling
Popis výsledku v původním jazyce
The 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.
Název v anglickém jazyce
Influencing the Indentation Curves by the Bluntness of the Berkovich Indenter at the Fem Modelling
Popis výsledku anglicky
The 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.
Klasifikace
Druh
D - Stať ve sborníku
CEP obor
—
OECD FORD obor
20302 - Applied mechanics
Návaznosti výsledku
Projekt
—
Návaznosti
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Ostatní
Rok uplatnění
2020
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název statě ve sborníku
Acta Polytechnica CTU Proceedings
ISBN
978-80-01-06735-2
ISSN
2336-5382
e-ISSN
—
Počet stran výsledku
5
Strana od-do
131-135
Název nakladatele
CTU
Místo vydání
Prague
Místo konání akce
Praha
Datum konání akce
6. 11. 2019
Typ akce podle státní příslušnosti
EUR - Evropská akce
Kód UT WoS článku
—