Detail publikačního výsledku

Toughening effects quantification in glass matrix composite reinforced by alumina platelets

KOTOUL, M.; POKLUDA, J.; ŠANDERA, P.; DLOUHÝ, I.; CHLUP, Z.; BOCCACCINI, A.

Originální 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

Druh

Článek WoS

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.

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

Glass matrix composites, crack deflection, fracture surface roughness, residual stresses

Klíčová slova v angličtině

Glass matrix composites, crack deflection, fracture surface roughness, residual stresses

Autoři

KOTOUL, M.; POKLUDA, J.; ŠANDERA, P.; DLOUHÝ, I.; CHLUP, Z.; BOCCACCINI, A.

Rok RIV

2012

Vydáno

01.07.2008

ISSN

1359-6454

Periodikum

ACTA MATERIALIA

Svazek

56

Číslo

12

Stát

Spojené státy americké

Strany od

2908

Strany do

2918

Strany počet

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",
  pages="2908--2918",
  issn="1359-6454"
}