Odd Cosserat elasticity in active materials

Publikation: Beitrag in FachzeitschriftForschungsartikelBeigetragenBegutachtung

Beitragende

  • Piotr Surówka - , Wrocław University of Science and Technology, Max-Planck-Institute for the Physics of Complex Systems, Würzburg-Dresden Cluster of Excellence ct.qmat (Autor:in)
  • Anton Souslov - , University of Bath (Autor:in)
  • Frank Jülicher - , Max-Planck-Institute for the Physics of Complex Systems, Technische Universität Dresden (Autor:in)
  • Debarghya Banerjee - , Max-Planck-Institute for the Physics of Complex Systems, Georg-August-Universität Göttingen (Autor:in)

Abstract

Stress-strain constitutive relations in solids with an internal angular degree of freedom can be modeled using Cosserat (also called micropolar) elasticity. In this paper, we explore Cosserat materials that include chiral active components and hence odd elasticity. We calculate static elastic properties and show that the static response to rotational stresses leads to strains that depend on both Cosserat and odd elasticity. We compute the dispersion relations in odd Cosserat materials in the overdamped regime and find the presence of exceptional points. These exceptional points create a sharp boundary between a Cosserat-dominated regime of complete wave attenuation and an odd-elasticity-dominated regime of propagating waves. We conclude by showing the effect of Cosserat and odd-elasticity terms on the polarization of Rayleigh surface waves.

Details

OriginalspracheEnglisch
Aufsatznummer064609
FachzeitschriftPhysical Review E
Jahrgang108
Ausgabenummer6
PublikationsstatusVeröffentlicht - Dez. 2023
Peer-Review-StatusJa

Externe IDs

PubMed 38243431