Nonlinear Modes in Shear Horizontal Wave Propagation–Analytical and Numerical Analysis

M. Osika, A. Ziaja-Sujdak, R. Radecki, L. Cheng, W. J. Staszewski

Research output: Journal article publicationJournal articleAcademic researchpeer-review

Abstract

Nonlinear shear horizontal guided wavefield is investigated analytically in plates. The major focus is on the effect of nonlinear material parameters, excitation frequency, wave number and wave amplitude on nonlinear mode generation. The analytical solution is based on the multiple-scale perturbation method and modal decomposition approach. The approximate analytical solution is validated using the Local Interaction Simulation Approach, implemented for nonlinear shear wave propagation. The results show that the analysed shear horizontal wavefield is distorted by material nonlinearity. The resulting displacement field can be interpreted in a form of nonlinear modes.

Original languageEnglish
Article number117247
JournalJournal of Sound and Vibration
Volume540
DOIs
Publication statusPublished - 8 Dec 2022

Keywords

  • Distorted dispersion curves
  • Material nonlinearity
  • Nonlinear modes
  • Nonlinear wave propagation
  • Shear horizontal waves

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Mechanics of Materials
  • Acoustics and Ultrasonics
  • Mechanical Engineering

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