Detail publikace
Mechanismy přemostění a zachycení čela trhliny vedoucí ke zvýšení houževnatosti kompozitů
KOTOUL, M. VRBKA, J.
Český název
Mechanismy přemostění a zachycení čela trhliny vedoucí ke zvýšení houževnatosti kompozitů
Anglický název
Crack bridging and trapping mechanisms used to toughen brittle matrix composite
Typ
článek v časopise - ostatní, Jost
Jazyk
en
Originální abstrakt
The aim of the work is to investigate theoretically 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. 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. Energy considerations are attempted to estimate the extent of particle/matrix debonding. Comparison with some experimental observations is provided.
Český abstrakt
The aim of the work is to investigate theoretically 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. 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. Energy considerations are attempted to estimate the extent of particle/matrix debonding. Comparison with some experimental observations is provided.
Anglický abstrakt
The aim of the work is to investigate theoretically 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. 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. Energy considerations are attempted to estimate the extent of particle/matrix debonding. Comparison with some experimental observations is provided.
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
0167-8442
Časopis
Theoretical and Applied Fracture Mechanics
Ročník
40
Číslo
1
Počet stran
22
BIBTEX
@article{BUT41549,
author="Michal {Kotoul} and Jan {Vrbka},
title="Crack bridging and trapping mechanisms used to toughen brittle matrix composite",
journal="Theoretical and Applied Fracture Mechanics",
year="2003",
volume="40",
number="1",
month="January",
issn="0167-8442"
}