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Nondestructive inspection of concrete structures by nonlinear elastic wave spectroscopy methods
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SYSNO ASEP 0438763 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Ostatní články Název Nondestructive inspection of concrete structures by nonlinear elastic wave spectroscopy methods Tvůrce(i) Převorovský, Zdeněk (UT-L) RID, ORCID
Krofta, Josef (UT-L) RID, ORCID
Kober, Jan (UT-L) RID, ORCID
Chlada, Milan (UT-L) RID, ORCIDZdroj.dok. E-Journal of Nondestructive Testing & Ultrasonics - ISSN 1435-4934
Roč. 19, č. 12 (2014)Poč.str. 29 s. Forma vydání Online - E Akce European Conference on Non-Destructive Testing (ECNDT 2014) /11./ Datum konání 06.10.2014-10.10.2014 Místo konání Praha Země CZ - Česká republika Typ akce WRD Jazyk dok. eng - angličtina Země vyd. DE - Německo Klíč. slova civil engineering ; nuclear ; power plant ; structural health monitoring (SHM) ; signal processing ; other medhods ; ultrasonic testing (UT) Vědní obor RIV BI - Akustika a kmity Institucionální podpora UT-L - RVO:61388998 Anotace Nonlinear Elastic Wave Spectroscopy (NEWS) methods may be considered as effective tools for the purpose of concrete Structural Health Monitoring. A combination of three NEWS procedures was tested on two concrete laboratory samples of nuclear reactor pressure vessel (RPV) cavity: SSM (Scale Subtraction Method), NWMS (Nonlinear wave Modulation Spectroscopy), and NLTRM (Nonlinear Time Reversal Mirrors). The samples of the form of real RPV sections were prepared from 3 different concrete mixtures corresponding to original structures. Although the tests were performed on new intact samples, results from all three procedures, which are discussed in this paper shown effective applicability of NEWS methods for periodic or continuous RPV cavity inspection even if concrete tests were performed only by the way of transmitting and receiving ultrasonic signals through the adjacent steel tubes ("ionization channels") buried in the concrete. Pracoviště Ústav termomechaniky Kontakt Marie Kajprová, kajprova@it.cas.cz, Tel.: 266 053 154 ; Jana Lahovská, jaja@it.cas.cz, Tel.: 266 053 823 Rok sběru 2015
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