Wave motion in auxetic solids

Teik-Cheng Lim*, Philip Cheang, Fabrizio Scarpa

*Corresponding author for this work

Research output: Contribution to journalArticle (Academic Journal)

18 Citations (Scopus)

Abstract

The effect of auxeticity on the velocity of elastic wave propagation is investigated herein for isotropic solids. Three types of dimensionless wave velocities are proposed for investigating longitudinal waves in prismatic bars, plane waves of dilatation, plane waves of distortion, and surface waves. Results show that the velocity of surface waves is slightly less than that of plane waves of distortion for conventional solids, but the difference becomes large for auxetic solids. The velocity of longitudinal waves in prismatic bars is higher than that of plane waves of distortion for conventional solids but the gap narrows for solids of the low auxetic range of -0.5

Original languageEnglish
Pages (from-to)388-396
Number of pages9
Journalphysica status solidi (b)
Volume251
Issue number2
DOIs
Publication statusPublished - Feb 2014

Keywords

  • auxetic solids
  • elastic waves
  • wave velocity
  • NEGATIVE POISSONS RATIO
  • SOLITARY WAVES
  • PROPAGATION
  • VELOCITY
  • BEHAVIOR
  • SURFACE
  • PLATES
  • CORE

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