Detail publikace
Analýza přechodu od mechanismu zhouževnatění souvisejícím s přemostěním trhliny k mechanismu zachycení čela trhliny v křehkých kompozitech s tvárnými částicemi
KOTOUL, M. VYSLOUŽIL, T. VRBKA, J.
Český název
Analýza přechodu od mechanismu zhouževnatění souvisejícím s přemostěním trhliny k mechanismu zachycení čela trhliny v křehkých kompozitech s tvárnými částicemi
Anglický název
Analysis of the transition from crack bridging to crack trapping in brittle matrix composites toughened by ductile phase
Typ
článek v časopise - ostatní, Jost
Jazyk
en
Originální abstrakt
The aim of the work is to investigate theoretically the transition between two basic mechanisms of toughening of brittle solids through the inclusion of ductile phase. The first mechanism of thoughening is accomplished extrinsically, i.e. through the development of crack-tip shielding from crack deflection and/or crack bridging by intact ductile particles in the crack wake. The stress-crack opening displacement relationship relies upon the constant volume plastic flow of the particles according to the model used in previous works. According to the second mechanism the crack is arrested at the ductile phase such that it must renucleate on the other side. The resultant crack trapping acts to toughen the material intrinsically.
Český abstrakt
The aim of the work is to investigate theoretically the transition between two basic mechanisms of toughening of brittle solids through the inclusion of ductile phase. The first mechanism of thoughening is accomplished extrinsically, i.e. through the development of crack-tip shielding from crack deflection and/or crack bridging by intact ductile particles in the crack wake. The stress-crack opening displacement relationship relies upon the constant volume plastic flow of the particles according to the model used in previous works. According to the second mechanism the crack is arrested at the ductile phase such that it must renucleate on the other side. The resultant crack trapping acts to toughen the material intrinsically.
Anglický abstrakt
The aim of the work is to investigate theoretically the transition between two basic mechanisms of toughening of brittle solids through the inclusion of ductile phase. The first mechanism of thoughening is accomplished extrinsically, i.e. through the development of crack-tip shielding from crack deflection and/or crack bridging by intact ductile particles in the crack wake. The stress-crack opening displacement relationship relies upon the constant volume plastic flow of the particles according to the model used in previous works. According to the second mechanism the crack is arrested at the ductile phase such that it must renucleate on the other side. The resultant crack trapping acts to toughen the material intrinsically.
Klíčová slova česky
brittle matrix composites, crack bridging, crack trapping, toughening, ductile particles
Klíčová slova anglicky
brittle matrix composites, crack bridging, crack trapping, toughening, ductile particles
Rok RIV
2003
Vydáno
01.01.2003
ISSN
1802-1484
Časopis
Engineering Mechanics
Ročník
10
Číslo
3
Počet stran
20
BIBTEX
@article{BUT41551,
author="Michal {Kotoul} and Tomáš {Vysloužil} and Jan {Vrbka},
title="Analysis of the transition from crack bridging to crack trapping in brittle matrix composites toughened by ductile phase",
journal="Engineering Mechanics",
year="2003",
volume="10",
number="3",
month="January",
issn="1802-1484"
}