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Statements

Subject Item
n2:RIV%2F61989100%3A27360%2F11%3A86080395%21RIV12-GA0-27360___
rdf:type
skos:Concept n15:Vysledek
dcterms:description
Drop weight tear test (DWTT) is one of the standard methods for evaluation of the ductility of large-dimensional structural components, such as pipelines used for gas and/or oil transportation. In general, the pipelines are used even at places with temperatures close to -40 °C, and in such environments, it is necessary to guarantee the resistance of the material used for pipeline against the initiation of unstable fractures. Currently, the percent of shear area of the DWTT specimen is determined by an evaluator. The objective of this paper is to introduce new procedures working on the principle of deterministic, statistical and fractal description of the fracture surface. For the proposed computational procedures, the fracture surface of the test specimen is scanned at the macroscopic level using the 3D-Cam scanner. The newly investigated procedures are highly sensitive to the determination of the percent of shear area on the tested DWTT specimens. The developed procedures to assess the fracture surfaces of the DWTT specimens contribute to making the results of this test more correct, objective and also increase the reliability and safety of the manufactured pipelines. Drop weight tear test (DWTT) is one of the standard methods for evaluation of the ductility of large-dimensional structural components, such as pipelines used for gas and/or oil transportation. In general, the pipelines are used even at places with temperatures close to -40 °C, and in such environments, it is necessary to guarantee the resistance of the material used for pipeline against the initiation of unstable fractures. Currently, the percent of shear area of the DWTT specimen is determined by an evaluator. The objective of this paper is to introduce new procedures working on the principle of deterministic, statistical and fractal description of the fracture surface. For the proposed computational procedures, the fracture surface of the test specimen is scanned at the macroscopic level using the 3D-Cam scanner. The newly investigated procedures are highly sensitive to the determination of the percent of shear area on the tested DWTT specimens. The developed procedures to assess the fracture surfaces of the DWTT specimens contribute to making the results of this test more correct, objective and also increase the reliability and safety of the manufactured pipelines.
dcterms:title
Nové metody hodnocení lomového povrchu ze zkoušky padajícím závažím Nové metody hodnocení lomového povrchu ze zkoušky padajícím závažím
skos:prefLabel
Nové metody hodnocení lomového povrchu ze zkoušky padajícím závažím Nové metody hodnocení lomového povrchu ze zkoušky padajícím závažím
skos:notation
RIV/61989100:27360/11:86080395!RIV12-GA0-27360___
n15:predkladatel
n18:orjk%3A27360
n4:aktivita
n16:P
n4:aktivity
P(GAP107/10/0361)
n4:cisloPeriodika
zima
n4:dodaniDat
n5:2012
n4:domaciTvurceVysledku
n10:9524657 n10:3440206 n10:7958323
n4:druhVysledku
n14:J
n4:duvernostUdaju
n19:S
n4:entitaPredkladatele
n13:predkladatel
n4:idSjednocenehoVysledku
216459
n4:idVysledku
RIV/61989100:27360/11:86080395
n4:jazykVysledku
n12:eng
n4:klicovaSlova
Fractal Analysis; Fracture Surface; Drop Weight Tear Test
n4:klicoveSlovo
n9:Fracture%20Surface n9:Drop%20Weight%20Tear%20Test n9:Fractal%20Analysis
n4:kodStatuVydavatele
CZ - Česká republika
n4:kontrolniKodProRIV
[4199CDFF2FFF]
n4:nazevZdroje
Hutnické listy
n4:obor
n8:JG
n4:pocetDomacichTvurcuVysledku
3
n4:pocetTvurcuVysledku
3
n4:projekt
n17:GAP107%2F10%2F0361
n4:rokUplatneniVysledku
n5:2011
n4:svazekPeriodika
6
n4:tvurceVysledku
Židlík, Pavel Strnadel, Bohumír Ferfecki, Petr
s:issn
0018-8069
s:numberOfPages
7
n3:organizacniJednotka
27360