Modeling Load-displacement Curve and Pop-in Effect in Nanoindentation Tests
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26620%2F14%3APU111847" target="_blank" >RIV/00216305:26620/14:PU111847 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1016/j.mspro.2014.06.181" target="_blank" >http://dx.doi.org/10.1016/j.mspro.2014.06.181</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.mspro.2014.06.181" target="_blank" >10.1016/j.mspro.2014.06.181</a>
Alternative languages
Result language
angličtina
Original language name
Modeling Load-displacement Curve and Pop-in Effect in Nanoindentation Tests
Original language description
The nanoindentation test of a single crystal of tungsten is simulated by a multiscale model based on a nonlinear elastic finite element analysis coupled with both ab initio calculations of the ideal shear strength and crystallographic considerations. The onset of microplasticity, associated with the pop-in effect identified in experimental nanoindentation tests (creation of first dislocations), is assumed to be related to the moment of achieving the value of the ideal shear strength for the copper crystal under a superimposed hydrostatic stress. The calculated value of the critical indentation depth is in a very good correspondence with that of the experimentally observed pop-in on the load-displacement curve. The value of the Young modulus of tungsten received from the reduced modulus of elasticity of the original Hertz model is also in an excellent agreement with experimental data. This offers us a possibility to assess the concentration of alloying and impurity elements in the surface and sub-surface layers.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20306 - Audio engineering, reliability analysis
Result continuities
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)
Others
Publication year
2014
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Procedia Materials Science
ISSN
2211-8128
e-ISSN
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Volume of the periodical
3
Issue of the periodical within the volume
1
Country of publishing house
NL - THE KINGDOM OF THE NETHERLANDS
Number of pages
6
Pages from-to
1111-1116
UT code for WoS article
000398274600176
EID of the result in the Scopus database
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