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Constitutive Modeling for Overconsolidated Clays Based on Disturbed State Concept. I: Theory
Publisher: American Society of Civil Engineers
Abstract: The disturbed state concept (DSC) is widely used to capture the cracking, breaking, heating, softening, and hardening behaviors of geomaterials. In this study, a constitutive model for overconsolidated clays is proposed ...
New Method for Improvement of Rockfill Material with Polyurethane Foam Adhesive
Publisher: American Society of Civil Engineers
Simulation of Scour around a Vibrating Pipe in Steady Currents
Publisher: American Society of Civil Engineers
Abstract: A vertical two-dimensional numerical model is employed to study the scour beneath a vibrating pipe exposed to steady currents. The ability of the model is first validated against previous scour experiments concerning both ...
Formulation of Cross-Anisotropic Failure Criterion for Granular Material
Publisher: American Society of Civil Engineers
Abstract: The failure anisotropy of geomaterial is inherently related to the microstructure such as grain arrangement, bedding, and crack pattern. This paper presents a formulation of an anisotropic failure criterion in three-dimensional ...
Simulation of Scour around a Vibrating Pipe in Steady Currents
Publisher: American Society of Civil Engineers
Abstract: A vertical two-dimensional numerical model is employed to study the scour beneath a vibrating pipe exposed to steady currents. The ability of the model is first validated against previous scour experiments concerning both ...
Seismic and Static Stability Analysis for 3D Reinforced Slope in Nonhomogeneous and Anisotropic Soils
Publisher: American Society of Civil Engineers
Abstract: Reinforcements are essential for improvement of slope stability. In most slope stability analyses, the soil is regarded as homogeneous, whereas it is in fact nonhomogeneous in many cases. Based on the limit-analysis method, ...
New Simple Breakage Index for Crushable Granular Soils
Publisher: ASCE
Abstract: Degradation of geomaterials, that is, particle breakage, can be harmful to the full life-cycle stability of practical engineering; for example, rockfill dam, energy-pile foundation, railway embankment, and retaining wall. ...
Constitutive Modeling for Transparent Granular Soils
Publisher: American Society of Civil Engineers
Abstract: Transparent granular soil was recently found to be greatly useful for observations of the internal deformation in geotechnical model tests. Therefore, it is necessary to investigate the stress–strain and stress–dilatancy ...
Model Tests on Soil Movement during the Installation of Piles in Transparent Granular Soil
Publisher: American Society of Civil Engineers
Abstract: This paper presents model tests on the displacement characteristics of flat-ended piles, pipe piles, and piles with a cone tip of 45º in a transparent granular soil. The testing setup consisted of transparent granular soil, ...
Elliptic Motions and Control of Rotors Suspending in Active Magnetic Bearings
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The nonlinear dynamics of rotors suspending in the active magnetic bearings (AMBs) with eight pole pairs are investigated. The nonlinear governing equations of two degreeoffreedom (2DOF) are obtained considering the rotor ...