Publication detail
Analysis of the transition from crack bridging to crack trapping in brittle matrix composites toughened by ductile phase
KOTOUL, M. VYSLOUŽIL, T. VRBKA, J.
Czech title
Analýza přechodu od mechanismu zhouževnatění souvisejícím s přemostěním trhliny k mechanismu zachycení čela trhliny v křehkých kompozitech s tvárnými částicemi
English title
Analysis of the transition from crack bridging to crack trapping in brittle matrix composites toughened by ductile phase
Type
journal article - other
Language
en
Original abstract
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.
Czech abstract
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.
English abstract
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.
Keywords in Czech
brittle matrix composites, crack bridging, crack trapping, toughening, ductile particles
Keywords in English
brittle matrix composites, crack bridging, crack trapping, toughening, ductile particles
RIV year
2003
Released
01.01.2003
ISSN
1802-1484
Journal
Engineering Mechanics
Volume
10
Number
3
Pages count
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"
}