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Updated: Apr 29, 2026
06:07
Studying Large Amplitude Oscillatory Shear Response of Soft Materials
Published on: April 25, 2019
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Time-dependent elastic response to a local shear transformation in amorphous solids
F Puosi1, J Rottler2, J-L Barrat3
1Université Grenoble 1/CNRS, LIPhy UMR 5588, Grenoble F-38041, France.
Summary
Molecular dynamics simulations reveal that amorphous solids
Area of Science:
- Condensed matter physics
- Materials science
Background:
- Amorphous solids exhibit complex behaviors under stress.
- Understanding plastic events in glasses is crucial for material science.
Purpose of the Study:
- Investigate the elastic response of 2D amorphous solids to shear transformations.
- Mimic elementary plastic events in deformed glasses using simulations.
Main Methods:
- Employed molecular-dynamics simulations.
- Simulated local shear transformations in 2D amorphous solids.
Main Results:
- Long-time equilibrium response matches Eshelby inclusion problem predictions.
- Observed crossover from propagative to diffusive elastic signal transmission based on damping.
- Time-dependent response aligns with diffusion equation predictions under strong damping.
Conclusions:
- The Eshelby inclusion model accurately predicts the averaged elastic response of amorphous solids.
- Material dynamics significantly influence elastic signal propagation, transitioning from propagative to diffusive behavior with increased damping.
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