# Tunable shear thickening in suspensions

@article{Lin2016TunableST, title={Tunable shear thickening in suspensions}, author={Neil Y.C. Lin and Christopher Ness and Michael E. Cates and Jin Sun and Itai Cohen}, journal={Proceedings of the National Academy of Sciences}, year={2016}, volume={113}, pages={10774 - 10778} }

Significance When a concentrated suspension is strained, its viscosity can increase radically. This behavior, known as shear thickening, can be very useful to technological applications or highly problematic in industrial processes. Suspension flow properties are typically specified at the formulation stage, meaning that they are fixed in advance rather than controlled in situ during application. Here, we report a biaxial shear strategy eradicating the flow-induced structures responsible for…

## 63 Citations

### Shear thickening in concentrated suspensions of smooth spheres in Newtonian suspending fluids.

- BiologySoft matter
- 2018

An overview of the understanding of shear thickening and the methods that have been developed to describe it is provided, as well as outstanding questions.

### Friction and the flow of concentrated suspensions

- Engineering
- 2020

Suspensions are ubiquitous in industrial processing, yet fundamental understanding of how they flow remains limited. Recent progress on shear-thickening suspensions of non-Brownian particles…

### Global topology of contact force networks: Insight into shear thickening suspensions.

- EngineeringPhysical review. E
- 2019

The topological metrics show that the network grows homogeneously at large scales but with many local regions devoid of contacts, indicating clearly the role of CFN growth in causing the large change in the rheological response at the shear thickening transition.

### Using Acoustic Perturbations to Dynamically Tune Shear Thickening in Colloidal Suspensions.

- PhysicsPhysical review letters
- 2019

Piezoelectric transducers are used to apply acoustic perturbations to dynamically tune the suspension viscosity in the shear-thickening regime to attribute the mechanism of dethickening to the disruption of shear -induced force chains via perturbation that are large relative to the particle roughness scale.

### Tuning the mechanical and flow properties of colloidal gels with ultrasound

- Materials Science
- 2019

Colloidal gels, where nanoscale particles aggregate into an elastic yet fragile network, are at the heart of materials that combine specific optical, electrical and mechanical properties. Tailoring…

### Flow-to-fracture transition and pattern formation in a discontinuous shear thickening fluid

- Geology
- 2020

Recent theoretical and experimental work suggests a frictionless-frictional transition with increasing inter-particle pressure explains the extreme solid-like response of discontinuous shear…

### Density waves in shear-thickening suspensions

- PhysicsScience Advances
- 2020

This work reveals how shear-thickening suspensions flow, shedding light onto as yet non-understood complex dynamics reported in the literature, and shows the existence of density fluctuations that appear as periodic waves moving in the direction of flow and breaking azimuthal symmetry.

### Stress decomposition in LAOS of dense colloidal suspensions

- Engineering
- 2020

We present a method for stress decomposition to understand the rich interactions present in the large amplitude oscillatory shear (LAOS) of shear-thickening suspensions. This method is rooted in…

### Transition from steady shear to oscillatory shear rheology of dense suspensions.

- EngineeringPhysical review. E
- 2020

A simple two-dimensional suspensions where oscillatory and stationary shear are applied simultaneously along the same direction is studied, finding an extension to the μ(J) rheology, a constitutive relationship between the shear stresses and theShear rate valid for oscillatory shear flows and that shear-jamming of frictional particles at oscillatoryShear dominated flows occurs at higher packing fractions compared to steady sheardominated flows.

### Extended $\mu(J)$-rheology for dense suspensions at oscillatory shear flows

- Engineering
- 2020

Recent studies have highlighted that oscillatory and time-dependent shear flows might help increase flowability of dense suspensions. While most focus has been on cross-flows we here study a simple…

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