Počet záznamů: 1
Statistical treatment of grid indentation considering the effect of the interface and the microstructural length scale
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SYSNO ASEP 0500437 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Statistical treatment of grid indentation considering the effect of the interface and the microstructural length scale Tvůrce(i) Haušild, P. (CZ)
Čech, J. (CZ)
Materna, A. (CZ)
Matějíček, Jiří (UFP-V) RID, ORCIDCelkový počet autorů 4 Zdroj.dok. Mechanics of Materials. - : Elsevier - ISSN 0167-6636
Roč. 129, January (2019), s. 99-103Poč.str. 5 s. Jazyk dok. eng - angličtina Země vyd. NL - Nizozemsko Klíč. slova Composites ; Hardness ; Indentation modulus ; Nanoindentation ; Size effect Vědní obor RIV JI - Kompozitní materiály Obor OECD Composites (including laminates, reinforced plastics, cermets, combined natural and synthetic fibre fabrics CEP GB14-36566G GA ČR - Grantová agentura ČR Institucionální podpora UFP-V - RVO:61389021 UT WOS 000460191600010 EID SCOPUS 85056854113 DOI 10.1016/j.mechmat.2018.11.006 Anotace Statistical evaluation of grid indentation data is a well-known method used for determination of mechanical properties of multiphase materials. The statistical distribution of these type of data can be significantly influenced by the presence of an interface between adjacent phases. Consequently, the bias in mechanical properties (e.g. Young´s modulus, hardness), more pronounced for higher penetration depths, is usually observed. Using standard multimodal Gaussian distribution leads to underestimation of mechanical properties of harder/stiffer phases and vice versa. To eliminate this effect, statistical distribution taking into account the conditional probability of the indentation near the interface was developed and used in this case study on tungsten–copper composite. Using this approach, intrinsic material properties (Young´s modulus and hardness) of the individual phases were determined. Moreover, the contribution from the presence of the neighboring phase was separated and thus, so-called indentation size effect was successfully identified in individual phases of tungsten–copper composite. Pracoviště Ústav fyziky plazmatu Kontakt Vladimíra Kebza, kebza@ipp.cas.cz, Tel.: 266 052 975 Rok sběru 2019 Elektronická adresa https://www.sciencedirect.com/science/article/pii/S0167663617308360?via%3Dihub
Počet záznamů: 1