Study of micromechanical behavior of cement paste by integration of experimental nanoindentation and numerical analysis
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F08%3A01151664" target="_blank" >RIV/68407700:21110/08:01151664 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
Study of micromechanical behavior of cement paste by integration of experimental nanoindentation and numerical analysis
Original language description
In the present study, we use the finite element method to examine the ability of various constitutive relations to reproduce the response of a hydrated phase of hardened cement paste measured in a cyclic nanoindentation experiment. It is found that the linear viscoelastic model, which fits very well a single loading-dwell-unloading cycle, does not properly describe the subsequent cycles. Qualitatively the best results are obtained with a combined viscoelastic and plastic constitutive law. A finite element model is also employed to analyze the effect of material inhomogeneity in the vicinity of the indent. The results of the numerical study provide a valuable feedback to experiments by helping to select appropriate indentation depths and loading histories. The study also extends the knowledge about the micromechanical behavior of cement paste.
Czech name
Studie mikromechanického chování cementové pasty založená na integraci experimentální nanoindentace a numerické analýzy
Czech description
Schopnost různých konstitutivních modelů reprezentovat mikromechanické chování cementové pasty je analyzována pomocí MKP.
Classification
Type
D - Article in proceedings
CEP classification
JN - Civil engineering
OECD FORD branch
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Result continuities
Project
<a href="/en/project/GA103%2F06%2F1856" target="_blank" >GA103/06/1856: Nanoindentation Tests for the Evaluation of Cement Paste Physical Properties</a><br>
Continuities
Z - Vyzkumny zamer (s odkazem do CEZ)
Others
Publication year
2008
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
Creep, shrinkage and durability mechanics of concrete and concrete structures
ISBN
978-0-415-48508-1
ISSN
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e-ISSN
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Number of pages
8
Pages from-to
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Publisher name
CRC Press
Place of publication
Boca Raton
Event location
Ise-Shima
Event date
Sep 30, 2008
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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