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Numerical investigation of the core eccentricity effect on wave propagation in embedded waveguide

Abstrakt

The paper presents results of theoretical and numerical investigation of guided wave propagation in two-layer bars with geometric imperfections in the form of eccentric location of steel core. Steel rod of diameter equal to 1 cm embedded in composite mortar-type cover with external diameter equal to 5 cm has been taken into consideration. Several different rods with variable size of eccentricity are analysed. Results for rods with misalignment of the cover and the core are presented as dispersion curves which were calculated using SAFE method (semi-analytical finite element) and compared with results obtained for perfect axisymmetric rod. Moreover, numerical calculation for several cases of imperfect rods were conducted and results given in the form of displacements and accelerations maps and time-domain signals.

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Informacje szczegółowe

Kategoria:
Publikacja w czasopiśmie
Typ:
artykuły w czasopismach recenzowanych i innych wydawnictwach ciągłych
Opublikowano w:
Diagnostyka nr 20, strony 1 - 8,
ISSN: 1641-6414
Język:
angielski
Rok wydania:
2019
Opis bibliograficzny:
Zima B., Kędra R.: Numerical investigation of the core eccentricity effect on wave propagation in embedded waveguide// Diagnostyka. -Vol. 20., nr. 2 (2019), s.1-8
DOI:
Cyfrowy identyfikator dokumentu elektronicznego (otwiera się w nowej karcie) 10.29354/diag/103733
Weryfikacja:
Politechnika Gdańska

wyświetlono 7 razy

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