dilatancy


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dilatancy

[dī′lāt·ən·sē]
(chemistry)
The property of a viscous suspension which sets solid under the influence of pressure.
(geology)
Expansion of deformed masses of granular material, such as sand, due to rearrangement of the component grains.

dilatancy

The expansion of cohesionless soils when subject to shearing deformation.
References in periodicals archive ?
The dilatancy angle, [psi], is positive in the case of dilative shearing, but this value is negative in the case of contractive shearing.
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.
and Spitzig, W.A., "Pressure Dependence and Dilatancy of Plastic Flow," Proceedings of 15th International Congress of Theoretical and Applied Mechanics, North-Holland Publishing Co., Amsterdam, Toronto, Canada: 377-386, 1980.
To complete the description of the constitutive model, evolution of the hardening modulus H and dilatancy [beta] must still be explained.
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.
In the current research, it was exhibited that the parameters of soil cohesion and internal friction angle have the most influence on the hardening soil elastoplastic constitutive model and the dilatancy angle has the least influence.
Note that as the compressive stress approached the compressive strength, the specimen volume increased (dilatancy behavior) and the elastic wave velocity slightly decreased.
Extensional creep is generally in the oxidation environment due to extension and dilatancy, the porosity and permeability enhance.
Earthquake of strike-slip type in Central California: Evidence on the question of dilatancy, Science, 182, 581-583.