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

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F20%3A00535276" target="_blank" >RIV/68378271:_____/20:00535276 - isvavai.cz</a>

Alternative codes found

RIV/61388998:_____/20:00535276 RIV/00216305:26210/20:PU136685

Result on the web

<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>

Result language

angličtina

Original language name

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

Original language description

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.

Czech name

—

Czech description

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Type

D - Article in proceedings

CEP classification

—

OECD FORD branch

20302 - Applied mechanics

Project

—

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2020

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection

Acta Polytechnica CTU Proceedings

ISBN

978-80-01-06735-2

ISSN

2336-5382

e-ISSN

—

Number of pages

5

Pages from-to

131-135

Publisher name

CTU

Place of publication

Prague

Event location

Praha

Event date

Nov 6, 2019

Type of event by nationality

EUR - Evropská akce

UT code for WoS article

000700368300025