Results 241 to 250 of about 172,830 (294)
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Dynamic Shear Modulus of Treated Expansive Soils
Journal of the Geotechnical Engineering Division, 1980Dynamic shear modulus of expansive soils treated with lime, salt, and lime-salt combination has been determined by the resonant column technique to study the parametric effects of confining pressure, shear-strain amplitude, degree of saturation, treatment level, type of additives, and soil structure.
Wing-Cheong Au, Yong S. Chae
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Dynamic Shear Modulus of Isotropic Elastomers
Macromolecules, 2004We have investigated the dynamic mechanical behavior of two cross-linked polymer networks with very different topologies: one made of backbones randomly linked along their length; the other with fixed-length strands uniformly cross-linked at their ends. The samples were analyzed using oscillatory shear, at very small strains corresponding to the linear
A. M. Squires +2 more
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Dynamic shear modulus for two-dimensional bond percolation
Physical Review B, 1988We report dynamic measurements of the shear modulus \ensuremath{\mu} of a two-dimensional bond percolation lattice model made by exciting torsional oscillations of cylindrical screens of (3--5)\ifmmode\times\else\texttimes\fi{}${10}^{3}$ bonds. Critical variables such as the correlation length and the susceptibility, calculated from cluster statistics,
, Allen, , Golding, , Haemmerle
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The dynamic shear modulus of marine sediments
The Journal of the Acoustical Society of America, 1988The dynamic shear modulus of marine sediments (μ) as a function of overburden pressure (p) and voids ratio (e) can be represented approximately by the expression μ=μ0(p/p0)n ×exp(−Γe), where μ0, n, and Γ are constants. Available laboratory results for sands, silts, and clays over a pressure range of 24 to 700 kPa and a voids ratio range of 0.35 to 1.5 ...
G. M. Bryan, R. D. Stoll
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Dynamic shear modulus of polystyrene bead foams
Journal of Applied Polymer Science, 1972AbstractThe shear storage modulus has been determined for 0.05, 0.10, and 0.22 g/cc polystyrene bead foams and for the full density polymer at frequencies from 0.005 to 0.5 Hz at temperatures from −5° to 84°C. These data are superposed to form master curves of log modulus versus log temperature‐reduced frequency, using shift factors calculated by the ...
J. A. Rinde, K. G. Hoge
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Shear modulus reconstruction in dynamic elastography: time harmonic case
Physics in Medicine and Biology, 2006This paper presents a direct inversion approach for reconstructing the elastic shear modulus in soft tissue from dynamic measurements of the interior displacement field during time harmonic excitation. The tissue is assumed to obey the equations of nearly incompressible, linear, isotropic elasto-dynamics in harmonic motion.
Eunyoung, Park, Antoinette M, Maniatty
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Time Effects on Dynamic Shear Modulus of Clays
Journal of the Soil Mechanics and Foundations Division, 1972A Hardin oscillator was used to apply a steady-state, torsional vibratory load to remolded specimens of kaolinite and calcium bentonite inside a triaxial chamber and under an isotropic consolidation pressure. The principles of the resonant column test were used to determine the dynamic shear modulus.
William F. Marcuson, Harvey E. Wahls
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Dynamic shear modulus of a semiflexible polymer network
Physical Review E, 1998We construct a model for the dynamic shear modulus $G(\ensuremath{\omega})$ of entangled or crosslinked networks of semiflexible polymer that can account for the high-frequency scaling behavior, $G(\ensuremath{\omega})\ensuremath{\sim}{\ensuremath{\omega}}^{3/4},$ that has recently been observed in solutions of the biopolymer $F$-actin.
F. Gittes, F. C. MacKintosh
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The Dynamic Shear Modulus and Damping Ratio of Clay Nanocomposites
Clays and Clay Minerals, 2014AbstractClay soils are very useful as liners in geotechnical structures such as landfill sites, dams, water channels, etc. Swelling is a common problem in clay liners, however. To better understand swelling properties, in the present study clay nanocomposites were produced by means of the sol gel method, using a hydrophobic clay, polymers (locust bean ...
Akbulut, Suat, Kurt, Zeynep Neşe
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Experimental Measurement of Dynamical Young's Modulus and Shear Modulus of Low-Impedance Materials
Key Engineering Materials, 2004A new dynamical measurement technique that combines PVDF film piezoelectric gages with resistor strain gages in conventional SHPB is developed to study the dynamical mechanical behavior of low-impedance aluminum foam. The average value of the stresses measured by PVDF gages from the front face and the back face of the specimen at each time is taken as ...
Shao Chiu Shih +3 more
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