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Related Experiment Video

Updated: Jul 5, 2025

Studying Large Amplitude Oscillatory Shear Response of Soft Materials

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Published on: April 25, 2019

Odd Cosserat elasticity in active materials.

Piotr Surówka^1,2,3, Anton Souslov⁴, Frank Jülicher^2,5

¹Institute of Theoretical Physics, Wrocław University of Science and Technology, 50-370 Wrocław, Poland.

Physical Review. E

|January 20, 2024

Summary

This summary is machine-generated.

This study explores Cosserat materials with odd elasticity, revealing how rotational stresses influence strain. Exceptional points in these materials create distinct regimes for wave propagation and attenuation.

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Area of Science:

Solid mechanics
Materials science
Theoretical physics

Background:

Cosserat elasticity models solids with internal angular degrees of freedom.
Chiral active components introduce odd elasticity into Cosserat materials.
Understanding these materials is crucial for advanced solid mechanics applications.

Purpose of the Study:

To investigate the elastic properties of Cosserat materials incorporating odd elasticity.
To analyze the impact of rotational stresses on strain in these materials.
To explore wave propagation phenomena and surface wave polarization.

Main Methods:

Calculation of static elastic properties.
Computation of dispersion relations in the overdamped regime.
Analysis of Rayleigh surface wave polarization.

Main Results:

Static response to rotational stresses depends on both Cosserat and odd elasticity.
Exceptional points are identified in the dispersion relations.
A sharp boundary exists between wave attenuation and propagation regimes.

Conclusions:

Cosserat and odd elasticity terms significantly affect Rayleigh surface wave polarization.
The identified exceptional points delineate distinct wave behavior regimes.
This research provides insights into the complex behavior of chiral active Cosserat materials.