Search Results - "Triantafyllidis, T"

Influence of the Grain-Size Distribution Curve of Quartz Sand on the Small Strain Shear Modulus Gmax by Wichtmann, T, Triantafyllidis, T

“…The paper presents a study of the influence of grain-size distribution curve on the small strain shear modulus Gmax of quartz sand with subangular grain shape…”
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Inspection of three sophisticated constitutive models based on monotonic and cyclic tests on fine sand: Hypoplasticity vs. Sanisand vs. ISA by Wichtmann, T., Fuentes, W., Triantafyllidis, T.

“…The prediction quality of three of the most sophisticated constitutive models for sands has been examined based on a comparison of results from element test…”
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On the influence of a non-cohesive fines content on small strain stiffness, modulus degradation and damping of quartz sand by Wichtmann, T., Navarrete Hernández, M.A., Triantafyllidis, T.

“…The influence of a non-cohesive fines content on small-strain shear modulus Gmax, small-strain constrained elastic modulus Mmax, shear modulus degradation…”
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Effect of Uniformity Coefficient on G/Gmax and Damping Ratio of Uniform to Well-Graded Quartz Sands by Wichtmann, T, Triantafyllidis, T

“…AbstractThe modulus degradation curves, G(γ)/Gmax, and the damping ratio, D(γ), of 27 clean quartz sands with specially mixed grain size distribution curves…”
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On the influence of the sample preparation method on strain accumulation in sand under high-cyclic loading by Wichtmann, T., Steller, K., Triantafyllidis, T.

“…A study on the influence of the sample preparation method on the cumulative strains in sand under high-cyclic loading is presented. Numerous drained cyclic…”
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Strain accumulation due to packages of cycles with varying amplitude and/or average stress – On the bundling of cycles and the loss of the cyclic preloading memory by Wichtmann, T., Triantafyllidis, T.

“…In order to predict permanent deformations by means of a high-cycle accumulation (HCA) model, a random cyclic loading, i.e. a loading with frequently changing…”
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Inspection of a high-cycle accumulation model for sand based on recalculations of a full-scale test on a gravity base foundation for offshore wind turbines by Zachert, H., Wichtmann, T., Kudella, P., Triantafyllidis, T.

“…Offshore wind turbines (OWT) are generally founded on piles or gravity base foundations. Up to now, there is a lack of validated and standardized analysis…”
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Predicting undrained static response of sand with non-plastic fines in terms of equivalent granular state parameter by Porcino, D. D., Diano, V., Triantafyllidis, T., Wichtmann, T.

“…The influence of non-plastic fines on undrained monotonic behaviour of sand was investigated over a wide range of fines content (FC = 0–40%), global void ratio…”
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Improved simplified calibration procedure for a high-cycle accumulation model by Wichtmann, T., Niemunis, A., Triantafyllidis, T.

“…The high-cycle accumulation (HCA) model proposed by Niemunis et al. [16] predicts permanent deformations due to a drained cyclic loading with many small cycles…”
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On the influence of the grain size distribution curve on P-wave velocity, constrained elastic modulus M max and Poisson's ratio of quartz sands by Wichtmann, T., Triantafyllidis, T.

“…The paper presents an experimental study on the influence of the grain size distribution curve on dynamic soil properties. More than 160 resonant column tests…”
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On correlations between “dynamic” (small-strain) and “static” (large-strain) stiffness moduli – An experimental investigation on 19 sands and gravels by Wichtmann, T., Kimmig, I., Triantafyllidis, T.

“…Correlations between “dynamic” (small-strain) and “static” (large-strain) stiffness moduli for sand are examined. Such correlations are often used for a…”
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Inspection of a high-cycle accumulation model for large numbers of cycles (N=2 million) by Wichtmann, T., Triantafyllidis, T.

“…The high-cycle accumulation (HCA) model for sand proposed by Niemunis et al. (2005) [16] has been developed based on numerous drained cyclic triaxial tests…”
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Torsional vibrations of a column of fine-grained material: A gradient elastic approach by Polyzos, D., Huber, G., Mylonakis, G., Triantafyllidis, T., Papargyri-Beskou, S., Beskos, D.E.

“…The gradient theory of elasticity with damping is successfully employed to explain the experimentally observed shift in resonance frequencies during forced…”
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Seismic pressures on rigid cantilever walls retaining elastic continuously non-homogeneous soil: An exact solution by Vrettos, C., Beskos, D.E., Triantafyllidis, T.

“…The dynamic response of an elastic continuously nonhomogeneous soil layer over bedrock retained by a pair of rigid cantilever walls to a horizontal seismic…”
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On the influence of the grain size distribution curve on P-wave velocity, constrained elastic modulus Mmax and Poisson's ratio of quartz sands by WICHTMANN, T, TRIANTAFYLLIDIS, T

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On the influence of platy shell particles on the cumulative deformations in sand under drained high-cyclic loading by Wichtmann, T., Triantafyllidis, T., Ziesmann, L.

“…Mixtures of a fine sand with platy shell fragments have been tested under drained monotonic and high-cyclic loading. The content (0 to 40 %) and the size of…”
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Errata to ‘‘Seismic pressures on rigid cantilever walls retaining elastic continuously non-homogeneous soil: An exact solution” [Soil Dyn. Earthq. Eng. 82(2016) 142–153] by Vrettos, C., Beskos, D.E., Triantafyllidis, T.

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Correlations of the liquefaction resistance of sands in spreader dumps of lignite opencast mines with CPT tip resistance and shear wave velocity by Wichtmann, T., Kimmig, I., Steller, K., Triantafyllidis, T., Back, M., Dahmen, D.

“…Correlations between the liquefaction resistance of sands in spreader dumps of lignite opencast mines on one side and the CPT tip resistance or the shear wave…”
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Stress attractors predicted by a high-cycle accumulation model confirmed by undrained cyclic triaxial tests by Wichtmann, T., Triantafyllidis, T.

“…Depending on the boundary conditions a high-cyclic loading (=large number of cycles N≥103, small strain amplitudes εampl≤10−3) may either lead to strain…”
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An experimental parametric study on the liquefaction resistance of sands in spreader dumps of lignite opencast mines by Wichtmann, T., Steller, K., Triantafyllidis, T., Back, M., Dahmen, D.

“…The results of a parametric study on the liquefaction resistance of sands dumped with spreaders in lignite opencast mines using undrained cyclic triaxial tests…”
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