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Statements

Subject Item
n2:RIV%2F68081723%3A_____%2F02%3A07023028%21RIV%2F2003%2FGA0%2FA07003%2FN
rdf:type
skos:Concept n19:Vysledek
dcterms:description
The aim of the paper is in using the Beremin conception of local approach to fracture resistance assessment. The local approach uses internal microscale variables related to the material damage evolution in order to predict initiation of macroscale cracks in an elastic-plastic regime. This methodology was an invaluable complement to classical fracture mechanics, which is based on a single parameter for characterizing fracture, but not reproduces the transition behaviour satisfactory. The use of Weibull statistics for modelling of defect distribution over characteristic volume of material under a critical state of stress allows predict the probability of failure. Accepting these approaches to the analysis of local criteria for cleavage fracture the location parameter u and shape parameter m were calculated using FEM for notched tensile bars having various type of geometry. The first one was tensile specimen with circumferential notch similar to Charpy V-notch specimen (CVN), the other three typ The aim of the paper is in using the Beremin conception of local approach to fracture resistance assessment. The local approach uses internal microscale variables related to the material damage evolution in order to predict initiation of macroscale cracks in an elastic-plastic regime. This methodology was an invaluable complement to classical fracture mechanics, which is based on a single parameter for characterizing fracture, but not reproduces the transition behaviour satisfactory. The use of Weibull statistics for modelling of defect distribution over characteristic volume of material under a critical state of stress allows predict the probability of failure. Accepting these approaches to the analysis of local criteria for cleavage fracture the location parameter u and shape parameter m were calculated using FEM for notched tensile bars having various type of geometry. The first one was tensile specimen with circumferential notch similar to Charpy V-notch specimen (CVN), the other three typ
dcterms:title
The Use of the Local Approach for the Brittle Fracture Prediction. The Use of the Local Approach for the Brittle Fracture Prediction.
skos:prefLabel
The Use of the Local Approach for the Brittle Fracture Prediction. The Use of the Local Approach for the Brittle Fracture Prediction.
skos:notation
RIV/68081723:_____/02:07023028!RIV/2003/GA0/A07003/N
n3:strany
105;122
n3:aktivita
n5:P n5:Z
n3:aktivity
P(GA101/00/0170), P(ME 303), Z(AV0Z2041904)
n3:dodaniDat
n4:2003
n3:domaciTvurceVysledku
n14:9416242 n14:7513496
n3:druhVysledku
n13:C
n3:duvernostUdaju
n18:S
n3:entitaPredkladatele
n17:predkladatel
n3:idSjednocenehoVysledku
668107
n3:idVysledku
RIV/68081723:_____/02:07023028
n3:jazykVysledku
n7:eng
n3:klicovaSlova
Beremin conception; local approach; size effect
n3:klicoveSlovo
n8:size%20effect n8:Beremin%20conception n8:local%20approach
n3:kontrolniKodProRIV
[358FFEFF5D87]
n3:mistoVydani
Dordrecht
n3:nazevEdiceCisloSvazku
(1)
n3:nazevZdroje
Transferability of Fracture Mechanical Characteristics.
n3:obor
n15:JL
n3:pocetDomacichTvurcuVysledku
2
n3:pocetTvurcuVysledku
2
n3:pocetUcastnikuAkce
0
n3:pocetZahranicnichUcastnikuAkce
0
n3:projekt
n9:GA101%2F00%2F0170 n9:ME%20303
n3:rokUplatneniVysledku
n4:2002
n3:tvurceVysledku
Kozák, Vladislav Janík, Aleš
n3:zamer
n11:AV0Z2041904
s:numberOfPages
18
n10:hasPublisher
Kluwer Academic Publishers