Understanding the complex flow of soft amorphous materials requires going beyond standard rheometers, which fail to capture stress heterogeneities at the mesoscopic scale. By combining shear rheometry with time-resolved X-ray micro-tomography on 3D foams, the study uncovers universal master curves in local stress dynamics and reveals how microstructural rearrangements drive non-local stress redistribution, explaining macroscopic elastoplastic behavior.
- Florian Schott
- Benjamin Dollet
- Rajmund Mokso