Detail publikace
Toughening effects quantification in glass matrix composite reinforced by alumina platelets
KOTOUL, M. POKLUDA, J. ŠANDERA, P. DLOUHÝ, I. CHLUP, Z. BOCCACCINI, A.
Český název
Toughening effects quantification in glass matrix composite reinforced by alumina platelets
Anglický název
Toughening effects quantification in glass matrix composite reinforced by alumina platelets
Typ
článek v časopise ve Web of Science, Jimp
Jazyk
en
Originální abstrakt
A borosilicate glass matrix composite containing alumina platelets was considered to investigate toughening mechanisms and crack tip behaviour in dispersion reinforced brittle matrix composites. Fracture toughness was determined applying the chevron notched specimen technique and fractographic analysis was employed to reveal the active toughening mechanisms with increasing content of reinforcement. A roughness-induced shielding effect has been quantified to prove the relation between fracture toughness and fracture surface roughness. Theoretical calculations of the fracture toughness enhancement based on a modified crack deflection model developed by Faber and Evans, combined with the influence of the increase in Young's modulus, were found to be in good agreement with experimental data. An effect of residual stresses upon toughening of the investigated composite is discussed.
Český abstrakt
A borosilicate glass matrix composite containing alumina platelets was considered to investigate toughening mechanisms and crack tip behaviour in dispersion reinforced brittle matrix composites. Fracture toughness was determined applying the chevron notched specimen technique and fractographic analysis was employed to reveal the active toughening mechanisms with increasing content of reinforcement. A roughness-induced shielding effect has been quantified to prove the relation between fracture toughness and fracture surface roughness. Theoretical calculations of the fracture toughness enhancement based on a modified crack deflection model developed by Faber and Evans, combined with the influence of the increase in Young's modulus, were found to be in good agreement with experimental data. An effect of residual stresses upon toughening of the investigated composite is discussed.
Anglický abstrakt
A borosilicate glass matrix composite containing alumina platelets was considered to investigate toughening mechanisms and crack tip behaviour in dispersion reinforced brittle matrix composites. Fracture toughness was determined applying the chevron notched specimen technique and fractographic analysis was employed to reveal the active toughening mechanisms with increasing content of reinforcement. A roughness-induced shielding effect has been quantified to prove the relation between fracture toughness and fracture surface roughness. Theoretical calculations of the fracture toughness enhancement based on a modified crack deflection model developed by Faber and Evans, combined with the influence of the increase in Young's modulus, were found to be in good agreement with experimental data. An effect of residual stresses upon toughening of the investigated composite is discussed.
Klíčová slova česky
Glass matrix composites, crack deflection, fracture surface roughness, residual stresses
Klíčová slova anglicky
Glass matrix composites, crack deflection, fracture surface roughness, residual stresses
Rok RIV
2008
Vydáno
01.07.2008
ISSN
1359-6454
Časopis
Acta materialia
Ročník
56
Číslo
12
Strany od–do
2908–2918
Počet stran
11
BIBTEX
@article{BUT45563,
author="Michal {Kotoul} and Jaroslav {Pokluda} and Pavel {Šandera} and Ivo {Dlouhý} and Zdeněk {Chlup} and Aldo {Boccaccini},
title="Toughening effects quantification in glass matrix composite reinforced by alumina platelets",
journal="Acta materialia",
year="2008",
volume="56",
number="12",
month="July",
pages="2908--2918",
issn="1359-6454"
}