Relationships between structure, memory and flow in sheared disordered materials
نویسندگان
چکیده
A fundamental challenge regarding disordered solids is predicting macroscopic yield—the point at which elastic behaviour changes to plastic behaviour—from the microscopic arrangements of constituent particles. Yield accompanied by a sudden and large increase in energy dissipation due onset rearrangements. This suggests that one path understanding bulk rheology map particle configurations their mode deformation. Here, we subject two-dimensional dense colloidal systems oscillatory shear, measure trajectories rheology, quantify microstructure using excess entropy. Our results reveal direct relation between entropy insensitive nature interactions amongst We use this build physically informed model connects microstructure. findings suggest framework for tailoring rheological response materials tuning microstructural properties. Whether when material deforms elastically or plastically depends on its Experiments show materials, packing density, stress microstructure-related govern deformations.
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ژورنال
عنوان ژورنال: Nature Physics
سال: 2022
ISSN: ['1745-2473', '1745-2481']
DOI: https://doi.org/10.1038/s41567-022-01536-9