Propagation of Long Fatigue Cracks under Remote Modes II and III in Ferritic-pearlitic Steel
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26620%2F15%3APU118356" target="_blank" >RIV/00216305:26620/15:PU118356 - isvavai.cz</a>
Výsledek na webu
<a href="http://dx.doi.org/10.12693/APhysPolA.128.611" target="_blank" >http://dx.doi.org/10.12693/APhysPolA.128.611</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.12693/APhysPolA.128.611" target="_blank" >10.12693/APhysPolA.128.611</a>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Propagation of Long Fatigue Cracks under Remote Modes II and III in Ferritic-pearlitic Steel
Popis výsledku v původním jazyce
The aim of this research was to determine the 3D crack path and the related growth micromechanism in specimens made of the ferritic-pearlitic steel loaded in modes II and III. Crack closure effects were minimized at the beginning of the experiments by aspecial technique of generation of precracks in order to measure effective values of fatigue thresholds. Dependences of the crack growth rate on the stress intensity factor range were plotted for the near-threshold region. The effective mode III threshold KIIIeff,th = 4.4 MPam^1/2 was found to be higher than that for mode II (KIIeff,th = 2.9 MPam^1/2, the theory predicts 3.1 MPam^1/2) which is in agreement with the results for other metallic materials and available theoretical models. Fractographical observations in three dimensions revealed that the remote mode II cracks deflected towards the opening mode I by the mean angle ~ 50°, which is signicantly different from the low-angle deflections (coplanar growth) previously observed in th
Název v anglickém jazyce
Propagation of Long Fatigue Cracks under Remote Modes II and III in Ferritic-pearlitic Steel
Popis výsledku anglicky
The aim of this research was to determine the 3D crack path and the related growth micromechanism in specimens made of the ferritic-pearlitic steel loaded in modes II and III. Crack closure effects were minimized at the beginning of the experiments by aspecial technique of generation of precracks in order to measure effective values of fatigue thresholds. Dependences of the crack growth rate on the stress intensity factor range were plotted for the near-threshold region. The effective mode III threshold KIIIeff,th = 4.4 MPam^1/2 was found to be higher than that for mode II (KIIeff,th = 2.9 MPam^1/2, the theory predicts 3.1 MPam^1/2) which is in agreement with the results for other metallic materials and available theoretical models. Fractographical observations in three dimensions revealed that the remote mode II cracks deflected towards the opening mode I by the mean angle ~ 50°, which is signicantly different from the low-angle deflections (coplanar growth) previously observed in th
Klasifikace
Druh
J<sub>x</sub> - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
CEP obor
JL - Únava materiálu a lomová mechanika
OECD FORD obor
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Návaznosti výsledku
Projekt
Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.
Návaznosti
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Ostatní
Rok uplatnění
2015
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název periodika
ACTA PHYSICA POLONICA A
ISSN
0587-4246
e-ISSN
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Svazek periodika
128
Číslo periodika v rámci svazku
4
Stát vydavatele periodika
PL - Polská republika
Počet stran výsledku
4
Strana od-do
611-614
Kód UT WoS článku
000366357300035
EID výsledku v databázi Scopus
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