Suspension (topology)

Linguistics

Dilatant

Philosophy

Pure mathematics

Yield (engineering)

Geotechnical engineering

Materials science

Stress (linguistics)

Homotopy

Shear (geology)

Shear stress

Simple shear

Geology

Critical resolved shear stress

Thermodynamics

Physics

Mathematics

Composite material

Rheology

Mechanics

Shear rate

Shear thinning

Jamming

Physical Review Letters

Simulations are used to study the steady shear rheology of dense suspensions of frictional particles exhibiting discontinuous shear thickening and shear jamming, in which finite-range cohesive interactions result in a yield stress. We develop a constitutive model that combines yielding behavior and shear thinning at low stress with the frictional shear thickening at high stresses, in good agreement with the simulation results. This work shows that there is a distinct difference between solids below the yield stress and in the shear-jammed state, as the two occur at widely separated stress levels, separated by a region of stress in which the material is flowable.

From Yielding to Shear Jamming in a Cohesive Frictional Suspension