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In soil mechanics, dilatancy or shear dilatancy [1] is the volume change observed in granular materials when they are subjected to shear deformations. [2] [3] This effect was first described scientifically by Osborne Reynolds in 1885/1886 [4] [5] and is also known as Reynolds dilatancy.
The OCR is significant for two reasons: firstly, because the compressibility of normally consolidated soil is significantly larger than that for overconsolidated soil, and secondly, the shear behavior and dilatancy of clayey soil are related to the OCR through critical state soil mechanics; highly overconsolidated clayey soils are dilatant ...
Typical stress strain curve for a drained dilatant soil. Shear strength is a term used in soil mechanics to describe the magnitude of the shear stress that a soil can sustain. . The shear resistance of soil is a result of friction and interlocking of particles, and possibly cementation or bonding of particle contac
Dilatancy may refer to: Dilatancy (granular material): an increase in volume under shear; Dilatancy (viscous material): the solidification of viscous fluids under ...
Dilatant materials have certain industrial uses due to their shear-thickening behavior. For example, some all-wheel drive systems use a viscous coupling unit full of dilatant fluid to provide power transfer between front and rear wheels. On high-traction road surfacing, the relative motion between primary and secondary drive wheels is the same ...
Pages in category "Soil mechanics" The following 78 pages are in this category, out of 78 total. ... Dilatancy (granular material) Discontinuity (geotechnical ...
The first modern theoretical models for soil consolidation were proposed in the 1920s by Terzaghi and Fillunger, according to two substantially different approaches. [1] The former was based on diffusion equations in eulerian notation, whereas the latter considered the local Newton’s law for both liquid and solid phases, in which main variables, such as partial pressure, porosity, local ...
This is a soil test-based definition, usually performed via cyclic triaxial, cyclic direct simple shear, or cyclic torsional shear type apparatus. These tests are performed to determine a soil's resistance to liquefaction by observing the number of cycles of loading at a particular shear stress amplitude required to induce 'fails'.