Počet záznamů: 1
Determination of fatigue crack growth in the near-threshold regime using small-scale specimens
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SYSNO ASEP 0557098 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Determination of fatigue crack growth in the near-threshold regime using small-scale specimens Tvůrce(i) Blason, S. (DE)
Werner, T. (DE)
Kruse, J. (DE)
Madia, M. (DE)
Miarka, Petr (UFM-A) ORCID
Seitl, Stanislav (UFM-A) RID, ORCID
Benedetti, M. (IT)Celkový počet autorů 7 Číslo článku 103224 Zdroj.dok. Theoretical and Applied Fracture Mechanics. - : Elsevier - ISSN 0167-8442
Roč. 118, APR (2022)Poč.str. 12 s. Jazyk dok. eng - angličtina Země vyd. NL - Nizozemsko Klíč. slova tensile ; Fatigue crack growth ; Small-scale specimens ; Intrinsic fatigue propagation threshold ; Near-threshold regime ; High-strength steel ; Alternative test procedure Vědní obor RIV JN - Stavebnictví Obor OECD Construction engineering, Municipal and structural engineering CEP GA20-00761S GA ČR - Grantová agentura ČR Způsob publikování Omezený přístup Institucionální podpora UFM-A - RVO:68081723 UT WOS 000781771300004 EID SCOPUS 85122229577 DOI 10.1016/j.tafmec.2021.103224 Anotace A complete description of the experimental procedure for characterizing the intrinsic fatigue crack propagation threshold (delta(Kth,eff)) as well as the fatigue crack growth rate (FCGR) in the near-threshold regime using small-scale specimens is presented. A comparative study is carried out on the high strength steel S960QL considering different single edge notch bend (SENB) specimen geometries. On one hand, the reference dimensions of 6 mm thickness (B) and 19 mm width (W) are analysed and referred to as conventional specimens. On the other hand, small-scale specimens with B = 3 mm and W = 4 and 6 mm are also considered. Several loading configurations (3, 4-and 8-point bending) are used and a load ratio R = 0.8 is applied to avoid crack closure effects. The direct current potential drop (DCPD) technique is used to monitor the crack length. The reduced dimensions of the small-scale specimens imply the necessity of implementing a modified testing procedure compared to the recommendations of current standards for the generation of FCGR data. The results show a good agreement between tests conducted on different specimen sizes, which opens new perspectives in the use of small-scale specimens for characterizing the fatigue crack growth properties in metallic materials. Recommendations and limitations of the procedure are provided and discussed. Pracoviště Ústav fyziky materiálu Kontakt Yvonna Šrámková, sramkova@ipm.cz, Tel.: 532 290 485 Rok sběru 2023 Elektronická adresa https://www.sciencedirect.com/science/article/pii/S0167844221003207?via%3Dihub
Počet záznamů: 1