Nové metody hodnocení lomového povrchu ze zkoušky padajícím závažím

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27360%2F11%3A86080395" target="_blank" >RIV/61989100:27360/11:86080395 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Nové metody hodnocení lomového povrchu ze zkoušky padajícím závažím
Original language 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 th
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
JG - Metallurgy, metal materials
OECD FORD branch
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Project
<a href="/en/project/GAP107%2F10%2F0361" target="_blank" >GAP107/10/0361: Microstructural Design of Engineering Materials with High Toughness</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2011
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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