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Statements

Subject Item
n2:RIV%2F00216305%3A26210%2F08%3APU74994%21RIV12-GA0-26210___
rdf:type
skos:Concept n12:Vysledek
dcterms:description
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. 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.
dcterms:title
Toughening effects quantification in glass matrix composite reinforced by alumina platelets Toughening effects quantification in glass matrix composite reinforced by alumina platelets
skos:prefLabel
Toughening effects quantification in glass matrix composite reinforced by alumina platelets Toughening effects quantification in glass matrix composite reinforced by alumina platelets
skos:notation
RIV/00216305:26210/08:PU74994!RIV12-GA0-26210___
n3:aktivita
n16:P n16:Z
n3:aktivity
P(GA106/06/0724), Z(AV0Z20410507)
n3:cisloPeriodika
12
n3:dodaniDat
n18:2012
n3:domaciTvurceVysledku
n8:9413030 n8:5016908 n8:2510944
n3:druhVysledku
n14:J
n3:duvernostUdaju
n19:S
n3:entitaPredkladatele
n9:predkladatel
n3:idSjednocenehoVysledku
400239
n3:idVysledku
RIV/00216305:26210/08:PU74994
n3:jazykVysledku
n6:eng
n3:klicovaSlova
Glass matrix composites, crack deflection, fracture surface roughness, residual stresses
n3:klicoveSlovo
n10:residual%20stresses n10:crack%20deflection n10:Glass%20matrix%20composites n10:fracture%20surface%20roughness
n3:kodStatuVydavatele
CZ - Česká republika
n3:kontrolniKodProRIV
[058DED772369]
n3:nazevZdroje
Acta materialia
n3:obor
n17:JL
n3:pocetDomacichTvurcuVysledku
3
n3:pocetTvurcuVysledku
6
n3:projekt
n15:GA106%2F06%2F0724
n3:rokUplatneniVysledku
n18:2008
n3:svazekPeriodika
56
n3:tvurceVysledku
Dlouhý, Ivo Kotoul, Michal Šandera, Pavel Chlup, Zdeněk Pokluda, Jaroslav Boccaccini, Aldo
n3:wos
000257600900024
n3:zamer
n4:AV0Z20410507
s:issn
1359-6454
s:numberOfPages
11
n13:organizacniJednotka
26210