Abstract
The contribution focuses on the numerical simulation of wave propagation in an array of solid inclusions regularly distributed in a viscoelastic matrix. Waves are provoked by a transient load. The study aims to compare wave propagation in the viscoelastic continuum with and without the presence of solid inclusions. To this end, stress and displacement evolutions (in the time domain) are monitored at specified locations at the boundaries of the defined continuum. The case study contributes to a better understanding of the phenomena related to the reflection and diffraction of the mechanical waves by the solid inclusions. The modeled set-up often referred to in the literature as a phononic crystal, will possibly shed light on numerous practical applications. Among others, these are high sound absorption and strategies for the detection of defect locations.
Supported by the Russian Foundation for Basic Research (RFBR), project number 20-58-18002, and the Bulgarian National Science Fund, project number KP-06- Russia/5 from 11.12.2020.
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This study was performed within the bilateral project funded by the Russian Foundation for Basic Research (RFBR), project number 20-58-18002, and by the Bulgarian National Science Fund, project number KP-06-Russia/5 from 11.XII.2020.
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Zhelyazov, T., Pshenichnov, S. (2023). Simulation of the Mechanical Wave Propagation in a Viscoelastic Media With and Without Stiff Inclusions. In: Georgiev, I., Datcheva, M., Georgiev, K., Nikolov, G. (eds) Numerical Methods and Applications. NMA 2022. Lecture Notes in Computer Science, vol 13858. Springer, Cham. https://doi.org/10.1007/978-3-031-32412-3_30
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