Engineering Mechanics

International Conference

Proceedings Vol. 12 (2006)


ENGINEERING MECHANICS 2006

NATIONAL CONFERENCE WITH INTERNATIONAL PARTICIPATION
May 15 – 18, 2006, Svratka, Czech Republic
;
Editors: Jiří Náprstek and Cyril Fischer

Copyright © 2006 Institute of Theoretical and Applied Mechanics, Academy of Sciences of the Czech Republic, Prague

ISBN 80-86246-27-2 (printed, Extended Abstracts)
ISSN 1805-8248 (printed)
ISSN 1805-8256 (electronic)

list of papers scientific commitee

Effect of creep in evaluation of nanoindentation of cement pastes
J. Němeček, P. Kabele, P. Jůn
pages 262 - +11p., full text

This paper deals with nanoindentation of cement paste as a representative of heterogeneous and time-dependent building material. The paper concerns on the appropriateness of methods used for evaluation of micromechanical properties. Limitation of traditional elastic solution is shown on the unique experimental program. Better descriptions of indentation process based on analytical viscoelastic solution and finite element model with general viscoelastoplastic constitutive relation are proposed. These models are used for simulation of indentation and for estimation of material parameters at micrometer scale.


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