Experimental, analytical, and numerical study of transient elastic waves from a localized source in an aluminium strip

0543493 - ÚT 2022 RIV GB eng J - Journal Article
Mračko, Michal - Adámek, V. - Berezovski, Arkadi - Kober, Jan - Kolman, Radek
Experimental, analytical, and numerical study of transient elastic waves from a localized source in an aluminium strip.
Applied Acoustics. Roč. 178, July (2021), č. článku 107983. ISSN 0003-682X. E-ISSN 1872-910X
R&D Projects: GA MŠMT(CZ) EF15_003/0000493; GA ČR(CZ) GA19-04956S
Institutional support: RVO:61388998
Keywords : wave propagation * elastic strip * experimental measurement * finite element method * finite volume method * analytical solution * plane stress problem
OECD category: Mechanical engineering
Impact factor: 3.614, year: 2021
Method of publishing: Limited access
https://www.sciencedirect.com/science/article/pii/S0003682X21000761

Two-dimensional wave propagation in an aluminium strip is examined experimentally, analytically, and numerically in this paper. The high-frequency pulse is generated by a piezoelectric transducer, and the velocity component normal to the strip edge is measured by the non-contact vibrometer system. In-plane waves are then investigated under plane stress conditions using the analytical method based on Laplace and Fourier transforms. For numerical solution, explicit variants of finite element and finite volume solvers are utilized. It is shown that the used numerical algorithms confirm the analytical results and that they are suitable to represent the transient wavefield observed in the experiment including several wave reflections from upper and bottom strip boundaries.
Permanent Link: http://hdl.handle.net/11104/0321527