Global ETD Search
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Showing 1 to 6 of 6 for “"Dynamic yield stress"”.
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Mechanics of Aggregated Alumina Suspensions: Behavior Under Shear and Compression
… of an applied normal load increases the measured dynamic yield stress. However, the magnitude of this increase is very small, suggesting that Coulombic friction plays a very minor role in the mechanical response of such aggregated systems. This study has wide-ranging implications for the design …
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The effects of particle shape, size, and interaction on colloidal glasses and gels
… theoretical calculations. Nonlinear rheology and yielding behavior of repulsive and attractive spheres and anisotropic particles are examined and understood in terms of barriers constraining motion. The barriers are due to interparticle bonds or cages constraining translational or rotational …
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Formwork pressure and rheology of self consolidating concrete
… and cement paste mixes like workability, static yield stress gain and temperature change over time were evaluated and correlated with the formwork pressure data. The mix parameters for the concrete, mortar mixes like water to cementitious ratio, the addition of fly ash, aggregate content, maximum …
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Utilising a water-based spraying method to improve 3D printed concrete
… The analytical model, which uses the material's dynamic yield stress, proved to be a robust tool for predicting the buildability and failure mode of 3D printed structures, aligning well with experimental results. This research validates a practical and simple method for improving the performance …
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Some geological implications of the flow of clay-water mixtures
… eruption if the net pressure is greater than the yield stress of the clay. If the reservoir pressure falls during such an event, the eruption will eventually stop, once the pressure reaches a dynamic yield stress condition. Only later, if the reservoir pressure increases to the static yield stress …
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Understanding variability in performance of type il cements: insights from Raman imaging
… measurements also differed significantly, with dynamic yield stress varying between 16 to 59 Pa (mean: 34 ± 9.8 Pa) and the plastic viscosity of the stiffest cement being 0.61 Pa.s while that of the most compliant one was 0.12 Pa.s. Open porosity at 28 days ranged between 24% to 32% (mean: 28 ± …