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Statements

Subject Item
n2:RIV%2F68081723%3A_____%2F12%3A00385515%21RIV13-GA0-68081723
rdf:type
skos:Concept n13:Vysledek
dcterms:description
The aim of this work is to study the behaviour of a crack with its tip at the interface between two polymer materials. A numerical model of a cracked bi-material tension specimen is investigated and different stability criteria are tested. The stability criterion of a general stress concentrator usually needs a relation between the critical value of the generalized stress intensity factor (HIC) and critical value of the stress intensity factor KIC (fracture toughness). This relation is a function of the elastic mismatch of particular materials; the fracture toughness of the main material and the critical distance d ahead of the stress concentrator, where the criterion is applied. Estimation of distance d is usually not straightforward and different authors use different approaches for its determination. Therefore the main aim of this study is the mutual comparison of published approaches for d estimation and to quantify the influence of d choice on the critical load value. The results obtained can lead to a Berger residual lifetime prediction and safer design of layered structures. The aim of this work is to study the behaviour of a crack with its tip at the interface between two polymer materials. A numerical model of a cracked bi-material tension specimen is investigated and different stability criteria are tested. The stability criterion of a general stress concentrator usually needs a relation between the critical value of the generalized stress intensity factor (HIC) and critical value of the stress intensity factor KIC (fracture toughness). This relation is a function of the elastic mismatch of particular materials; the fracture toughness of the main material and the critical distance d ahead of the stress concentrator, where the criterion is applied. Estimation of distance d is usually not straightforward and different authors use different approaches for its determination. Therefore the main aim of this study is the mutual comparison of published approaches for d estimation and to quantify the influence of d choice on the critical load value. The results obtained can lead to a Berger residual lifetime prediction and safer design of layered structures.
dcterms:title
The effect of critical distance in stability condition for the crack at the interface between two materials The effect of critical distance in stability condition for the crack at the interface between two materials
skos:prefLabel
The effect of critical distance in stability condition for the crack at the interface between two materials The effect of critical distance in stability condition for the crack at the interface between two materials
skos:notation
RIV/68081723:_____/12:00385515!RIV13-GA0-68081723
n13:predkladatel
n14:ico%3A68081723
n3:aktivita
n6:P n6:I
n3:aktivity
I, P(GAP107/10/0361), P(GAP108/12/1560)
n3:cisloPeriodika
2/3
n3:dodaniDat
n5:2013
n3:domaciTvurceVysledku
n7:3875636 n7:6154557 n7:9861807 n7:1161415 n7:9200002
n3:druhVysledku
n18:J
n3:duvernostUdaju
n17:S
n3:entitaPredkladatele
n16:predkladatel
n3:idSjednocenehoVysledku
132984
n3:idVysledku
RIV/68081723:_____/12:00385515
n3:jazykVysledku
n12:eng
n3:klicovaSlova
stability criterion; critical distance; bi-material interface
n3:klicoveSlovo
n9:critical%20distance n9:bi-material%20interface n9:stability%20criterion
n3:kodStatuVydavatele
CZ - Česká republika
n3:kontrolniKodProRIV
[EAAFCCF9BD0D]
n3:nazevZdroje
Engineering Mechanics
n3:obor
n15:JL
n3:pocetDomacichTvurcuVysledku
5
n3:pocetTvurcuVysledku
5
n3:projekt
n4:GAP107%2F10%2F0361 n4:GAP108%2F12%2F1560
n3:rokUplatneniVysledku
n5:2012
n3:svazekPeriodika
19
n3:tvurceVysledku
Náhlík, Luboš Ševčík, Martin Zouhar, Michal Hutař, Pavel Knésl, Zdeněk
s:issn
1802-1484
s:numberOfPages
10