48 citations · 134 across the 6 of their papers we have counts for
6 papers
High-frequency Optimally Windowed Chirp rheometry for rapidly evolving viscoelastic materials: application to a crosslinking thermoset
Thanasis Athanasiou, Michela Geri, Patrice Roose +2
Abstract Knowledge of the evolution of mechanical properties of the curing matrix is of great importance in composite parts or structure fabrication. Conventional rheometry, based…
The hidden hierarchical nature of soft particulate gels
Minaspi Bantawa, Bavand Keshavarz, Michela Geri +4
Soft particulate gels include materials we can eat, squeeze, or 3D print. From foods to bio-inks to cement hydrates, these gels are composed of a small amount of particulate matter…
Interplay between wall slip and shear banding in a thixotropic yield stress fluid
Michela Geri, Brice Saint-Michel, Thibaut Divoux +2
We study the local dynamics of a thixotropic yield stress fluid that shows a pronounced non-monotonic flow curve. This mechanically unstable behavior is generally not observable fr…
Medium Amplitude Parallel Superposition (MAPS) Rheology, Part 2: Experimental Protocols and Data Analysis
Kyle R. Lennon, Michela Geri, Gareth H. McKinley +1
An experimental protocol is developed to directly measure the new material functions revealed by medium amplitude parallel superposition (MAPS) rheology. This experimental protocol…
Computing the linear viscoelastic properties of soft gels using an Optimally Windowed Chirp protocol
Mehdi Bouzid, Bavand Keshavarz, Michela Geri +3
We use molecular dynamics simulations of a model three-dimensional particulate gel, to investigate the linear viscoelastic response. The numerical simulations are combined with a n…
Time-Resolved Mechanical Spectroscopy of Soft Materials via Optimally Windowed Chirps
Michela Geri, Bavand Keshavarz, Thibaut Divoux +3
The ability to measure the bulk dynamic behavior of soft materials with combined time- and frequency-resolution is instrumental for improving our fundamental understanding of conne…