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  • 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. (en)
Title
  • Nové metody hodnocení lomového povrchu ze zkoušky padajícím závažím
  • Nové metody hodnocení lomového povrchu ze zkoušky padajícím závažím (en)
skos:prefLabel
  • Nové metody hodnocení lomového povrchu ze zkoušky padajícím závažím
  • Nové metody hodnocení lomového povrchu ze zkoušky padajícím závažím (en)
skos:notation
  • RIV/61989100:27360/11:86080395!RIV12-GA0-27360___
http://linked.open...avai/predkladatel
http://linked.open...avai/riv/aktivita
http://linked.open...avai/riv/aktivity
  • P(GAP107/10/0361)
http://linked.open...iv/cisloPeriodika
  • zima
http://linked.open...vai/riv/dodaniDat
http://linked.open...aciTvurceVysledku
http://linked.open.../riv/druhVysledku
http://linked.open...iv/duvernostUdaju
http://linked.open...titaPredkladatele
http://linked.open...dnocenehoVysledku
  • 216459
http://linked.open...ai/riv/idVysledku
  • RIV/61989100:27360/11:86080395
http://linked.open...riv/jazykVysledku
http://linked.open.../riv/klicovaSlova
  • Fractal Analysis; Fracture Surface; Drop Weight Tear Test (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...odStatuVydavatele
  • CZ - Česká republika
http://linked.open...ontrolniKodProRIV
  • [4199CDFF2FFF]
http://linked.open...i/riv/nazevZdroje
  • Hutnické listy
http://linked.open...in/vavai/riv/obor
http://linked.open...ichTvurcuVysledku
http://linked.open...cetTvurcuVysledku
http://linked.open...vavai/riv/projekt
http://linked.open...UplatneniVysledku
http://linked.open...v/svazekPeriodika
  • 6
http://linked.open...iv/tvurceVysledku
  • Ferfecki, Petr
  • Strnadel, Bohumír
  • Židlík, Pavel
issn
  • 0018-8069
number of pages
http://localhost/t...ganizacniJednotka
  • 27360
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