rheological
Concerning material flow
Rheological describes the flow and deformation of matter, particularly liquids, gels, and soft solids.
The term belongs to materials science and engineering, where understanding how substances behave under stress matters: rheological properties of concrete, rheological analysis of blood.
Honey, ketchup, and toothpaste all have distinctive rheological characteristics—some flow easily, others resist until force is applied.
Excessive stretching force
- stressPressure, mental or vocal
- yieldProduce or relinquish
- creepStealthy, slow movement
- elasticityTendency to resume original form
plasticity · ductility · malleability · brittleness · tensile · compression · shear · bending
Large repeated-unit molecule
- gelWobbly semi-solid substance
- foamBubble-filled substance
- emulsionBlended immiscible liquids
- suspensionTemporary halt or exclusion
colloid · slurry · mud · clay · bitumen · asphalt · cement · mortar
Fluid's flow resistance
- thicknessDepth of material
- gooeynessSoft, viscous consistency
- syrupyExcessively sweet or sentimental
- gelatinousViscous and semisolid
pasty · sludgy · tackiness · ropy · treacly · mucilaginous · gluey · viscid
Measures fluid flow resistance
- oscillationRepeated back-and-forth movement
- amplitudeMaximum oscillation displacement
- frequencyRate of recurrence
- torqueRotational force measurement
stress-strain · capillary · rotational · extensional · dynamic · steady-state · calibration
Combined fluid-solid deformation behavior
- shear-thickeningViscosity rises with stress
- non-NewtonianViscosity changes with stress
- NewtonianOf classical mechanics
- time-dependentChanging over duration
softening · Maxwell · constitutive · linear · nonlinear
strain
Excessive stretching force
elasticity · plasticity · ductility · malleability · brittleness · tensile · compression · shear · bending · torsion
polymer
Large repeated-unit molecule
suspension · colloid · slurry · mud · clay · bitumen · asphalt · cement · mortar · paste
viscosity
Fluid's flow resistance
gelatinous · pasty · sludgy · tackiness · ropy · treacly · mucilaginous · gluey · viscid · unctuous
viscometer
Measures fluid flow resistance
- oscillationRepeated back-and-forth movement
- amplitudeMaximum oscillation displacement
- frequencyRate of recurrence
torque · stress-strain · capillary · rotational · extensional · dynamic · steady-state · calibration
viscoelasticity
Combined fluid-solid deformation behavior
- shear-thickeningViscosity rises with stress
- non-NewtonianViscosity changes with stress
- NewtonianOf classical mechanics
time-dependent · softening · Maxwell · constitutive · linear · nonlinear