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RISExperimental Evaluation and Stress–Fractional Modeling of the State-Dependent Behavior of Rockfill
Publisher: ASCE
Abstract: As one of the main filled materials of the Lianghekou (LHK) rockfill dam, the strength and deformation characteristics of LHK rockfill is of great interest for hydraulic and geotechnical engineers. Correct interpretation ...
Constitutive Model of Granular Soils Using Fractional-Order Plastic-Flow Rule
Publisher: American Society of Civil Engineers
Abstract: Traditional plasticity models of granular soils are usually established on different loading and plastic potential surfaces. This paper presents a nonassociated bounding-surface model by incorporating a fractional-order ...
Laboratory Assessment of the Role of Particle Size Distribution on the Deformation and Degradation of Ballast under Cyclic Loading
Publisher: American Society of Civil Engineers
Abstract: The deformation and degradation of ballast is influenced by the size of the aggregates. In this study, a series of cyclic drained triaxial tests was conducted on ballast with different sizes using the large-scale cylindrical ...
Laboratory Assessment of the Role of Particle Size Distribution on the Deformation and Degradation of Ballast under Cyclic Loading
Publisher: American Society of Civil Engineers
Abstract: The deformation and degradation of ballast is influenced by the size of the aggregates. In this study, a series of cyclic drained triaxial tests was conducted on ballast with different sizes using the large-scale cylindrical ...
Critical-State Fractional Model and Its Numerical Scheme for Isotropic Granular Soil Considering State Dependence
Publisher: American Society of Civil Engineers
Abstract: Many elastoplastic models have been proposed to model the stress–strain behavior of granular soils. However, due to the dependence of stress-dilatancy on the material state, different model parameters are often needed to ...
Strength, Deformation, and Particle Breakage Behavior of Calcareous Sand: Role of Anisotropic Consolidation
Publisher: American Society of Civil Engineers
Abstract: The effect of an anisotropic stress state on the monotonic behavior of calcareous sand has been rarely investigated, although calcareous sands in the field mainly experience anisotropic consolidation rather than isotropic ...
Enhanced Fractional Model for Soil–Structure Interface Considering 3D Stress State and Fabric Effect
Publisher: ASCE
Abstract: Engineering structures in the field are exposed to three-dimensional (3D) stress-displacement conditions with fabric evolution occurring within the soil–structure interface. Upon 3D shearing, the fabric of the interface ...
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 ...
Three-Dimensional State-Dependent Fractional Plasticity Model for Soils
Publisher: ASCE
Abstract: To capture the nonassociated state-dependent constitutive behavior of soils subjected to different initial densities and pressures, a novel approach, the fractional-order (α) plasticity, was developed, which extends the ...