Kinetics of tearing process of thin steel sheets under static loading

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F46747885%3A24210%2F12%3A%230002776" target="_blank" >RIV/46747885:24210/12:#0002776 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Kinetics of tearing process of thin steel sheets under static loading

Popis výsledku v původním jazyce

The fracture toughness of extremely ductile materials cannot be described by critical stress intensity factor Kc or the critical value of the J-integral. The process of ductile tearing of thin-sheet materials is typical for various structures, such as car bodies or aircraft fuselage shells. Tearing toughness GIIIc gives more realistic view than KIc determined for the mode I. One method for evaluation of fracture toughness GIIIc for thin-sheet materials subjected to tearing is the ?trouser tearing test?.Two steel sheets were compared in this article: deep-drawing ferrite steel (IF) 1.95 mm thick and feritte-pearlite steel (F-P) 1.8 mm thick. Process of tearing can be divided into five following phases: I ? uniform deformation, II ? crack initiation, III - load decreasing, IV - stable tearing, V ? buckling. Optimum evaluation of GIIIC is in stable tearing phase where the load and radius of curvature of the bent part of specimen remains stable. Plastic deformation in the notch root was h

Název v anglickém jazyce

Kinetics of tearing process of thin steel sheets under static loading

Popis výsledku anglicky

The fracture toughness of extremely ductile materials cannot be described by critical stress intensity factor Kc or the critical value of the J-integral. The process of ductile tearing of thin-sheet materials is typical for various structures, such as car bodies or aircraft fuselage shells. Tearing toughness GIIIc gives more realistic view than KIc determined for the mode I. One method for evaluation of fracture toughness GIIIc for thin-sheet materials subjected to tearing is the ?trouser tearing test?.Two steel sheets were compared in this article: deep-drawing ferrite steel (IF) 1.95 mm thick and feritte-pearlite steel (F-P) 1.8 mm thick. Process of tearing can be divided into five following phases: I ? uniform deformation, II ? crack initiation, III - load decreasing, IV - stable tearing, V ? buckling. Optimum evaluation of GIIIC is in stable tearing phase where the load and radius of curvature of the bent part of specimen remains stable. Plastic deformation in the notch root was h

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

JG - Hutnictví, kovové materiály

OECD FORD obor

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Projekt

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Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2012

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Hutnické listy

ISSN

0018-8069

e-ISSN

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Svazek periodika

65

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

4

Strana od-do

19-22

Kód UT WoS článku

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EID výsledku v databázi Scopus

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