Detail publikace
Fracture Process in a Fine – Grained Cement – Based Composite Monitored with Nanoindentation and Acoustic Emission
NĚMEČEK, J. KERŠNER, Z. SCHMID, P. HAVLÍKOVÁ, I. ŠIMONOVÁ, H. TOPOLÁŘ, L. VESELÝ, V. ROVNANÍK, P.
Originální název
Fracture Process in a Fine – Grained Cement – Based Composite Monitored with Nanoindentation and Acoustic Emission
Anglický název
Fracture Process in a Fine – Grained Cement – Based Composite Monitored with Nanoindentation and Acoustic Emission
Jazyk
en
Originální abstrakt
The contribution is devoted to investigation of the fracture process zone (FPZ) in a finegrained cement-based composite made from hydrated Portland cement. Particularly, experimental investigations and description of the stable crack propagation using fracture mechanics model are conducted. Three-point bending tests on small composite beams with a central edge notch were performed. The damage due to fracture was monitored by means of nanoindentation performed around the macroscopically observable crack. Acoustic emission events were recorded during the three-point bending test and correlated with load–displacement data. The beneficial effect on the fracture resistance of fine-grained mortar specimens compared to plain cement pastes was quantified.
Anglický abstrakt
The contribution is devoted to investigation of the fracture process zone (FPZ) in a finegrained cement-based composite made from hydrated Portland cement. Particularly, experimental investigations and description of the stable crack propagation using fracture mechanics model are conducted. Three-point bending tests on small composite beams with a central edge notch were performed. The damage due to fracture was monitored by means of nanoindentation performed around the macroscopically observable crack. Acoustic emission events were recorded during the three-point bending test and correlated with load–displacement data. The beneficial effect on the fracture resistance of fine-grained mortar specimens compared to plain cement pastes was quantified.
Dokumenty
BibTex
@inproceedings{BUT115157,
author="Jiří {Němeček} and Zbyněk {Keršner} and Pavel {Schmid} and Ivana {Havlíková} and Hana {Šimonová} and Libor {Topolář} and Václav {Veselý} and Pavel {Rovnaník}",
title="Fracture Process in a Fine – Grained Cement – Based Composite Monitored with Nanoindentation and Acoustic Emission",
annote="The contribution is devoted to investigation of the fracture process zone (FPZ) in a finegrained
cement-based composite made from hydrated Portland cement. Particularly, experimental
investigations and description of the stable crack propagation using fracture mechanics model are
conducted. Three-point bending tests on small composite beams with a central edge notch were
performed. The damage due to fracture was monitored by means of nanoindentation performed
around the macroscopically observable crack. Acoustic emission events were recorded during
the three-point bending test and correlated with load–displacement data. The beneficial effect
on the fracture resistance of fine-grained mortar specimens compared to plain cement pastes was
quantified.",
address="Trans Tech publications",
booktitle="Mechanical properties of Materials from Nano to Micro/Meso-Scale",
chapter="115157",
doi="10.4028/www.scientific.net/KEM.662.47",
howpublished="print",
institution="Trans Tech publications",
year="2015",
month="june",
pages="47--50",
publisher="Trans Tech publications",
type="conference paper"
}