About: FRACTAL ANALYSIS OF DWTT FRACTURE SURFACES

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Safe operation of long pipelines at lower temperatures is conditional upon excellent fracture properties of the steels used for their production. One of the standard methods for evaluating the fracture behaviour of steels for piping system production is the drop weight tear test (DWTT). The resistance of steel against stable crack propagation is characterized by the percentage of the fracture surface represented by the shear area. The percentage value of the shear area depends on the applied international standard and on the subjective point of view of the evaluator. Therefore, an important step in the implementation of the DWTT is the objective and independent evaluation of the proportion of the fracture surface represented by the shear area. In this study, the height profile of the DWTT fracture surface is evaluated according to standards considering the visual character of the fracture. Additionally, the fractal dimension of the fracture surface is calculated by means of the box-counting algorithm. Testing of a set of specimens of X52 steel revealed the correlation between the percentage value of the shear area and the fractal dimension of the fracture surface. Safe operation of long pipelines at lower temperatures is conditional upon excellent fracture properties of the steels used for their production. One of the standard methods for evaluating the fracture behaviour of steels for piping system production is the drop weight tear test (DWTT). The resistance of steel against stable crack propagation is characterized by the percentage of the fracture surface represented by the shear area. The percentage value of the shear area depends on the applied international standard and on the subjective point of view of the evaluator. Therefore, an important step in the implementation of the DWTT is the objective and independent evaluation of the proportion of the fracture surface represented by the shear area. In this study, the height profile of the DWTT fracture surface is evaluated according to standards considering the visual character of the fracture. Additionally, the fractal dimension of the fracture surface is calculated by means of the box-counting algorithm. Testing of a set of specimens of X52 steel revealed the correlation between the percentage value of the shear area and the fractal dimension of the fracture surface. (en)
Title	FRACTAL ANALYSIS OF DWTT FRACTURE SURFACES FRACTAL ANALYSIS OF DWTT FRACTURE SURFACES (en)
skos:prefLabel	FRACTAL ANALYSIS OF DWTT FRACTURE SURFACES FRACTAL ANALYSIS OF DWTT FRACTURE SURFACES (en)
skos:notation	RIV/61989100:27360/12:86084670!RIV13-GA0-27360___
http://linked.open...avai/riv/aktivita	P
http://linked.open...avai/riv/aktivity	P(ED0040/01/01), P(GAP107/10/0361)
http://linked.open...vai/riv/dodaniDat	2013
http://linked.open...aciTvurceVysledku	Ferfecki, Petr Bonček, Richard Strnadel, Bohumír Maslova, Anastasia
http://linked.open.../riv/druhVysledku	D - Článek ve sborníku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Vysoká škola báňská - Technická univerzita Ostrava / Fakulta metalurgie a materiálového inženýrství
http://linked.open...dnocenehoVysledku	137102
http://linked.open...ai/riv/idVysledku	RIV/61989100:27360/12:86084670
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	percentage of shear area; X52 steel; fractal dimension; drop weight tear test (en)
http://linked.open.../riv/klicoveSlovo	X52 steel drop weight tear test percentage of shear area fractal dimension
http://linked.open...ontrolniKodProRIV	[CB2130BE9929]
http://linked.open...v/mistoKonaniAkce	Ostrava
http://linked.open...i/riv/mistoVydani	Ostrava
http://linked.open...i/riv/nazevZdroje	New methods of damage and failure analysis of structural parts : [proceedings of the grant workshop on ... : Technical University of Ostrava, Czech Republic, 10.-14.9.2012]
http://linked.open...in/vavai/riv/obor	JJ
http://linked.open...ichTvurcuVysledku	4 (xsd:int)
http://linked.open...cetTvurcuVysledku	4 (xsd:int)
http://linked.open...vavai/riv/projekt	Regional materials science and technology centre Microstructural Design of Engineering Materials with High Toughness
http://linked.open...UplatneniVysledku	2012
http://linked.open...iv/tvurceVysledku	Ferfecki, Petr Bonček, Richard Strnadel, Bohumír Maslova, Anastasia
http://linked.open...vavai/riv/typAkce	WRD - Světová
http://linked.open.../riv/zahajeniAkce	2012-09-10 (xsd:date)
number of pages	9 (xsd:int)
http://purl.org/ne...btex#hasPublisher	Vysoká škola báňská - Technická univerzita Ostrava
https://schema.org/isbn	978-80-248-2802-2
http://localhost/t...ganizacniJednotka	27360

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