Full field computing for elastic pulse dispersion in inhomogeneous bars

0493277 - ÚT 2019 RIV GB eng J - Journal Article
Berezovski, A. - Kolman, Radek - Berezovski, M. - Gabriel, Dušan - Adámek, V.
Full field computing for elastic pulse dispersion in inhomogeneous bars.
Composite Structures. Roč. 204, November (2018), s. 388-394. ISSN 0263-8223. E-ISSN 1879-1085
R&D Projects: GA MŠMT(CZ) EF15_003/0000493; GA ČR(CZ) GA17-22615S; GA ČR(CZ) GA17-12925S
Grant - others:AV ČR(CZ) ETA-15-03
Program: Bilaterální spolupráce
Institutional support: RVO:61388998
Keywords : wave propagation * wave dispersion * heterogeneous solids * finite element method * finite volume method
OECD category: Applied mechanics
Impact factor: 4.829, year: 2018
https://www.sciencedirect.com/science/article/pii/S0263822318303696

In the paper, the finite element method and the finite volume method are used in parallel for the simulation of a pulse propagation in periodically layered composites beyond the validity of homogenization methods. The direct numerical integration of a pulse propagation demonstrates dispersion effects and dynamic stress redistribution in physical space on the example of a one-dimensional layered bar. Results of numerical simulations are compared with the analytical solution constructed specifically for the considered problem. The analytical solution as well as numerical computations show the strong influence of the composition of constituents on the dispersion of a pulse in a heterogeneous bar and the equivalence of results obtained by two numerical methods.
Permanent Link: http://hdl.handle.net/11104/0289574