Paths of Shear-mode Cracks in Ferritic and Austenitic Steel
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F12%3APU101119" target="_blank" >RIV/00216305:26210/12:PU101119 - isvavai.cz</a>
Výsledek na webu
—
DOI - Digital Object Identifier
—
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Paths of Shear-mode Cracks in Ferritic and Austenitic Steel
Popis výsledku v původním jazyce
This work was focused on experimental study of shear crack paths in ferritic steel and austenitic steel. The aim was to elucidate the growth micromechanism of mode II and III cracks. The crack path and the surface topography were studied by means of 3D reconstruction of the fracture surfaces using stereophotogrammetry in SEM. Fracture morphologies in austenite and ferrite were different from qualitative as well as quantitative point of view. Measurements by means of the profile analysis were used to determine local deflection and twisting angles of the crack with respect to the remote shear direction. In this way, the crack tendency to grow in local mode I was detected. This tendency was found to be much higher in austenite than in ferrite. The mean branch deflection of remote mode II cracks in the austenite was close to the theoretical critical angle 70 degrees. For mode III cracks, the mean twist angle of branches was apparently lower than the critical angle 45 degrees which seems to
Název v anglickém jazyce
Paths of Shear-mode Cracks in Ferritic and Austenitic Steel
Popis výsledku anglicky
This work was focused on experimental study of shear crack paths in ferritic steel and austenitic steel. The aim was to elucidate the growth micromechanism of mode II and III cracks. The crack path and the surface topography were studied by means of 3D reconstruction of the fracture surfaces using stereophotogrammetry in SEM. Fracture morphologies in austenite and ferrite were different from qualitative as well as quantitative point of view. Measurements by means of the profile analysis were used to determine local deflection and twisting angles of the crack with respect to the remote shear direction. In this way, the crack tendency to grow in local mode I was detected. This tendency was found to be much higher in austenite than in ferrite. The mean branch deflection of remote mode II cracks in the austenite was close to the theoretical critical angle 70 degrees. For mode III cracks, the mean twist angle of branches was apparently lower than the critical angle 45 degrees which seems to
Klasifikace
Druh
D - Stať ve sborníku
CEP obor
JL - Únava materiálu a lomová mechanika
OECD FORD obor
—
Návaznosti výsledku
Projekt
<a href="/cs/project/GAP108%2F10%2F0698" target="_blank" >GAP108/10/0698: Nové přístupy k výzkumu únavového šíření trhliny v módech II, III a II+III</a><br>
Návaznosti
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Ostatní
Rok uplatnění
2012
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název statě ve sborníku
Proceedings of the 4th International Conference on Crack Paths (CP 2012)
ISBN
9788895940441
ISSN
—
e-ISSN
—
Počet stran výsledku
8
Strana od-do
727-734
Název nakladatele
Neuveden
Místo vydání
Parma
Místo konání akce
Parma
Datum konání akce
19. 9. 2012
Typ akce podle státní příslušnosti
WRD - Celosvětová akce
Kód UT WoS článku
—