The problem of seismic protection from the main types of surface acoustic waves and shear-pressure (SP) evanescent waves emanating from vicinity of an epicenter of an earthquake is discussed. Herein, SP waves represent a kind of the evanescent waves arising at critical angles of incident of bulk shear waves. The proposed seismic protection method utilizes vertical trenches (vertical barriers) filled with the specially constructed granular metamaterials. Some of nonlinear hyperelastic models along with nonlinear and inelastic models are analyzed for applications using granular metamaterials in case of cyclic dynamic loadings that correspond to arrival of the large intensity surface acoustic and evanescent waves. The main attention is paid to arrival of the large intensity Rayleigh, Rayleigh-Lamb and SP waves, as the most frequent waves and the most dangerous waves for engineering structures. Some of the new constitutive equations for metamaterials exhibiting different elastic moduli at tension and compression phases are proposed and discussed.

Original languageEnglish
Article number012041
JournalJournal of Physics: Conference Series
Volume1787
Issue number1
DOIs
StatePublished - 16 Feb 2021
Event35th International Conference on Equations of State for Matter, ELBRUS 2020 - Elbrus, Kabardino-Balkaria, Russian Federation
Duration: 1 Mar 20206 Mar 2020

    Scopus subject areas

  • Physics and Astronomy(all)

ID: 75530225