The discrepancy between the indentation curves obtained by the finite element method calculation with a Berkovich and a conical indenter

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F22%3A00565030" target="_blank" >RIV/68378271:_____/22:00565030 - isvavai.cz</a>
Alternative codes found
RIV/61388998:_____/22:00565030 RIV/61989592:15310/22:73613735 RIV/00216305:26210/22:PU144532
Result on the web
<a href="https://link.springer.com/article/10.1557/s43578-022-00574-6" target="_blank" >https://link.springer.com/article/10.1557/s43578-022-00574-6</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1557/s43578-022-00574-6" target="_blank" >10.1557/s43578-022-00574-6</a>

Result language
angličtina
Original language name
The discrepancy between the indentation curves obtained by the finite element method calculation with a Berkovich and a conical indenter
Original language description
Nanoindentation is an experimental technique used for the determination of Young modulus. The commonly used Oliver-Pharr analysis based on the assumption of the equivalence of indentation curves obtained with a Berkovich and a conical indenter is employed. Nevertheless, a break-down of this equivalence in projected area between the pyramidal and conical geometry was found. This discrepancy leads to an overestimation of Young modulus and needs to be corrected with coefficient β. It corrects the difference between Young modulus from the conical and the Berkovich indentation but cannot correct the indentation curves. This paper aims at the FEM study of modelling of the nanoindentation test, the influence of the Oliver-Pharr analysis assumptions, the comparison and unification of the different values of β for the Berkovich and the conical indentation with a rigid and a diamond indenter, the correction of the indentation curves, and the explanation of the differences between the FEM calculated and experimentally measured indentation curves.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
20501 - Materials engineering

Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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