dilatancy


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di·la·tan·cy

(dī-lā'tants-ē),
An increasing viscosity with increasing rate of shear accompanied by volumetric expansion.
[L. dilato, to dilate]

dilatancy

[dīlā′tənsē]
Etymology: L, dilatare, to widen
an unusual behavior observed in cytoplasm (and in some physical systems) during which its viscosity and applied force both increase.
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References in periodicals archive ?
There is no Newtonian plateau at intermediate shear rates, nor dilatancy peak at higher shear rates.
5 that the volume strain depends on longitudinal strain rate, which implies that the dilatancy phenomena of volume deformation depend on longitudinal strain rate.
Pressure Dependence and Dilatancy of Plastic Flow," Proceedings of 15th International Congress of Theoretical and Applied Mechanics, North-Holland Publishing Co.
The evolution of the dilatancy, equation (8), is given by a function similar to that of the hardening modulus, with the sign of the function dictated by its distance to the dilatancy stress so that
The dilatancy angle ([PSI]) can be approximated as [PSI] = [phi] -30[grados] (Material Models Manual of PLAXIS, 2012).
The strength and dilatancy of sands, Journal of Geotechnique 36(1): 65-78.
Dilatancy is a well-known phenomenon in frictional materials like concrete, soils, or masonry.
In the SC test, at the first stage of each loading step little dilatancy takes place and dilatancy begins to occur several minutes after step loading.
1999, ULF Electromagnetic Perturbations Resulting from the Fracture and Dilatancy in the Earthquake Preparation Zone, Terra Scientific Publishing Company, Tokyo, Atmospheric and Ionospheric Electromagnetic Phenomena Associated with Earthquakes, 371-382.
It analyzes phenomena such as shear thinning, dilatancy, thixotropy, aging, emulsification, gelation, dissolvation, and flocculation in various products and texture types.
A ring of dry sand around foot steps seen while walking though wet sandy beach is caused by dilatancy of the wet sand.
Dilatancy occurs when particles must spread apart in order to move past each other in response to a shear force applied to the material.