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Viscous Properties of Sands and Mixtures of Sand/Clay from Hollow Cylinder Tests
Abstract Tests on air dried Hostun and Toyoura sands and on two moist mixtures of mainly Hostun sand with Kaolin clay were performed with a precision hollow cylinder device “T4C StaDy”. Viscous properties are investigated through creep tests with and without rotation of stress principle axes (i.e. during triaxial compression - TC - and torsional shear - TS - tests) from small strain domain (some 10-5 m/m) up to large strain (some 10-2 m/m). A simplified version of the viscous evanescent model (VE), developed specifically at DGCB/ENTPE to model the peculiar viscous behaviour of sand, can be considered for creep tests. Good correlations are obtained between simulated and experimental creep strains for all the materials tested. A simple relation is confirmed for the viscous parameter of the VE model for sands (considering tests with and without rotation of stress principle axes) as well as for sand/clay mixtures (considering tests without rotation of stress principle axes).
Viscous Properties of Sands and Mixtures of Sand/Clay from Hollow Cylinder Tests
Abstract Tests on air dried Hostun and Toyoura sands and on two moist mixtures of mainly Hostun sand with Kaolin clay were performed with a precision hollow cylinder device “T4C StaDy”. Viscous properties are investigated through creep tests with and without rotation of stress principle axes (i.e. during triaxial compression - TC - and torsional shear - TS - tests) from small strain domain (some 10-5 m/m) up to large strain (some 10-2 m/m). A simplified version of the viscous evanescent model (VE), developed specifically at DGCB/ENTPE to model the peculiar viscous behaviour of sand, can be considered for creep tests. Good correlations are obtained between simulated and experimental creep strains for all the materials tested. A simple relation is confirmed for the viscous parameter of the VE model for sands (considering tests with and without rotation of stress principle axes) as well as for sand/clay mixtures (considering tests without rotation of stress principle axes).
Viscous Properties of Sands and Mixtures of Sand/Clay from Hollow Cylinder Tests
Duttine, Antoine (author) / Benedetto, Herve (author) / Bang, Damien (author)
2007-01-01
16 pages
Article/Chapter (Book)
Electronic Resource
English
Monotonic Loading , Viscous Property , Kaolin Clay , Bender Element , Toyoura Sand Physics , Soft and Granular Matter, Complex Fluids and Microfluidics , Continuum Mechanics and Mechanics of Materials , Building Materials , Geoengineering, Foundations, Hydraulics , Numerical and Computational Physics
Viscous Properties of Sands and Mixtures of Sand/Clay from Hollow Cylinder Tests
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