ISSN:
1013-9826
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Nanoindentation is an interesting technique used to probe the local mechanical propertiesof a material. Although this test has been widely used and developed over the world during the pastfew years, it remains a lot of uncertainties regarding the interpretation of nanoindentation data. Inthis study, we propose to simulate the nanoindentation test of FCC single crystals like Cu or Niusing three numerical models. At the lowest scale, molecular dynamics simulations give details ofthe nucleation of the first dislocations induced by the indentation. At an intermediate scale, discretedislocation dynamics simulations are performed to study the evolution of the dislocationmicrostructure during the loading. Finally, at the upper scale, 3D finite element modelling usingcrystal plasticity constitutive equations give a continuum description of the indentation inducedplasticity. It is shown how the different models are interconnected together
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/54/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.345-346.925.pdf
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