Wave Propagation in Two-Dimensional Block Media with Viscoelastic Layers (Theory and Experiment)
V. A. Saraikin1,2, A. G. Chernikov1, E. N. Sher1
1Institute of Mining, Siberian Branch, Russian Academy of Sciences, Novosibirsk, 630091 Russia
2Novosibirsk State University, Novosibirsk, 630090 Russia
Keywords: блочная среда, контакт блоков и прослоек, нестационарные волны, низкочастотная часть спектра, вязкость, затухание, block media, contact of blocks and interlayers, unsteady waves, low-frequency part of the spectrum, viscosity, damping
Abstract
A model of a medium consisting of parallel layers of elastic rectangular blocks separated by deformable viscoelastic interlayers is considered. The model is proposed for describing the low-frequency part of the spectrum in waves propagating in media with such a structure. For a two-dimensional assembly consisting of 36 blocks, the results of numerical calculations are compared with experimental data.
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