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 ?
19] measured such dilatancy peak on plastisols at intermediate shear rates.
During compression in different confining pressure, the volume strain is always characterizes negative and positive dilatancy.
The pressure sensitive yield function will give plastic dilatancy when the associated flow rule is assumed.
And the strain of shear dilatancy is smaller than the strain of peak strength.
To complete the description of the constitutive model, evolution of the hardening modulus H and dilatancy [beta] must still be explained.
When the proportion of fines is 40%, there is an increase in the deviatoric stress, which is due to the role of the fines in increasing the dilatancy in the soil and the absence of a contractile phase.
The Mohr-Coulomb model has 5 parameters: The Young's modulus (E), The Poisson's ratio (u), cohesion (c), friction angle ([phi]'c) and the dilatancy angle ([PSI]).
In addition, there are two parameters, which define the failure criteria (the friction angle, [phi], and cohesion, c) and a dilatancy angle, [psi], which to describe the flow rule.
Earthquake of strike-slip type in Central California: Evidence on the question of dilatancy, Science, 182, 581-583.
This model involves five parameters: Young's modulus E, Poisson's ratio v, cohesion c, friction angle [phi], and the dilatancy angle [psi].
On the dilatancy of media composed of rigid particles in contact, with experimental illustrations, Philosophical Magazine 5(20): 469-181.