Evaluation of local damping effect on static and dynamic behaviors of granular materials using DEM modeling [PDF]
مهندسی عمران شریف, 2022 Frictional sliding may not be sufficient for the stability of a system. In almost all models in the Discrete Element Method (DEM), a local non-viscous damping is used to balance the system by applying a damping force with a magnitude proportional to the ...
N. Mahbubi Motlagh +2 more
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A Comparison between Simple Shear and Triaxial Tests for Evaluating the Variations of G and D with Matric Suction [PDF]
E3S Web of Conferences, 2019 Shear modulus (G) and damping ratio (D) are both well known as principal soil dynamic parameters. In the present study, cyclic triaxial and simple shear tests are performed on Firuzkuh silica sand at various shear strain amplitudes using the developed ...
Fakharian Kazem +2 more
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Unified anisotropic elastoplastic model for sand [PDF]
, 2016 This paper presents a unified approach to model the influence of fabric anisotropy and its evolution on both the elastic and plastic responses of sand.
Gao, Zhiwei, Zhao, Jidong
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Aging effects on liquefaction resistance of sand estimated from laboratory investigation
Soils and Foundations, 2023 Liquefaction resistance is known to increase concomitantly with the increase in time after construction or sedimentation. Nevertheless, the mechanisms of its aging effect on liquefaction have not been completely elucidated.
Hirofumi Toyota, Susumu Takada
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Physical and mechanical characteristics of pyroclastic soil for the construction of embankments [PDF]
E3S Web of ConferencesIn the framework of wider research activity on the physical and mechanical behaviour of volcanic soils, this paper reports the results of some laboratory tests on this type of geomaterial.
d’Onofrio Anna +2 more
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Solid behavior of anisotropic rigid frictionless bead assemblies [PDF]
, 2008 We investigate the structure and mechanical behavior of assemblies of frictionless, nearly rigid equal-sized beads, in the quasistatic limit, by numerical simulation.
A. Duttine +24 more
core +6 more sources
Journal of Marine Science and EngineeringThe simulation accuracy of triaxial tests for oversolidated clay in transient finite element analysis is affected by soil constitutive model, permeability coefficient, overconsolidation ratio, shear rate and mesh size.
Yu Jiang, Zewei Xu, Run Liu
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Anisotropic creep model for soft soils [PDF]
, 2008 In this paper a new anisotropic model for time-dependent behaviour of soft soils is presented. The formulation is based on a previously developed isotropic creep model, assuming rotated Modified Cam Clay ellipses as contours of volumetric creep strain ...
Academy of Finland Grant 210744 (Funder) +6 more
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Experimental investigation of the elastoplastic response of aluminum silicate spray dried powder during cold compaction [PDF]
, 2014 Mechanical experiments have been designed and performed to investigate the elasto-plastic behaviour of green bodies formed from an aluminum silicate spray dried powder used for tiles production.
Bigoni, D. +5 more
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Verification of a novel stress path method by true-triaxial test
Scientific ReportsTo verify the novel method of achieving a true-triaxial stress path with the pseudo-triaxial apparatus, a series of drained and undrained tests were carried out for the identical scheme with pseudo-triaxial apparatus and true-triaxial apparatus ...
Zhigang Ma, Xuefeng Li, Longlong Lv
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