Propagation of Long Fatigue Cracks under Remote Mode II, III and II+III in Metals

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26620%2F13%3APU106479" target="_blank" >RIV/00216305:26620/13:PU106479 - 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
Propagation of Long Fatigue Cracks under Remote Mode II, III and II+III in Metals
Original language description
The aim of this research was to elucidate the crack growth micromechanism of modes II, III and mixed mode II+III in metallic materials. Experiments were performed on ferritic and austenitic steels and titanium (BCC, FCC and HCP metals) using CTS specimenloading for pure mode II, torsion device for pure mode III and special device for all modes II, III and the mixed mode II+III. The notches were precracked and thermally treated in a way that minimized crack closure effects. Crack growth rate dependenceson stress intensity factor ranges were acquired and the threshold values for each loading mode and material were determined. Mode III thresholds were higher than those of mode II for different steels, which is in accordance with available micromechanismmodels. Similarly, mode II had higher contribution to mixed-mode II+III crack propagation. Fracture morphologies were studied using stereophotogrammetry in SEM and statistical evaluation of angles of crack-wake asperities. Significant di
Czech name
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Czech description
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Project
<a href="/en/project/GAP108%2F10%2F0698" target="_blank" >GAP108/10/0698: New Approaches to Investigation of Fatigue Crack Propagation in Modes II, III and II+III</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2013
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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