Detail publikace
Ke stínění špice trhliny v částicově zpevněných kompositech
HORNÍKOVÁ, J. ŠANDERA, P. POKLUDA, J.
Český název
Ke stínění špice trhliny v částicově zpevněných kompositech
Anglický název
On the Crack Tip Shielding in Particle Reinforced Composites
Typ
článek v časopise - ostatní, Jost
Jazyk
en
Originální abstrakt
The paper is focused on crack-tip shielding effects caused by crack deflection (tilting) processes in particle reinforced composites. A numerical analysis by means of the ANSYS code was employed in order to assess these effects caused by rigid particles and holes in the matrix. As the first step, the effective stress intensity factor Keff was calculated for many crack tip positions in front, and in between, two particles of the same kind. In spite of a significant crack tip tilting, the spherical holes induce a slight increase in the Keff factor (anti-shielding). On the other hand, the rigid particles cause a significant decrease in the Keff-value (shielding), while leaving the crack practically unaffected. In the second step, the effect of particles in the wake of the crack tip will be analyzed in order to obtain a complex picture of shielding.
Český abstrakt
Ke stínění špice trhliny v částicově zpevněných kompositech
Anglický abstrakt
The paper is focused on crack-tip shielding effects caused by crack deflection (tilting) processes in particle reinforced composites. A numerical analysis by means of the ANSYS code was employed in order to assess these effects caused by rigid particles and holes in the matrix. As the first step, the effective stress intensity factor Keff was calculated for many crack tip positions in front, and in between, two particles of the same kind. In spite of a significant crack tip tilting, the spherical holes induce a slight increase in the Keff factor (anti-shielding). On the other hand, the rigid particles cause a significant decrease in the Keff-value (shielding), while leaving the crack practically unaffected. In the second step, the effect of particles in the wake of the crack tip will be analyzed in order to obtain a complex picture of shielding.
Klíčová slova anglicky
metallic inclusions, toughening effect, stress intensity factor, crack tip shielding
Rok RIV
2005
Vydáno
01.01.2005
ISSN
0255-5476
Časopis
Materials Science Forum
Ročník
482
Strany od–do
311–314
Počet stran
4
BIBTEX
@article{BUT45572,
author="Jana {Horníková} and Pavel {Šandera} and Jaroslav {Pokluda},
title="On the Crack Tip Shielding in Particle Reinforced Composites",
journal="Materials Science Forum",
year="2005",
volume="482",
month="January",
pages="311--314",
issn="0255-5476"
}