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RISHypoplastic Modeling of Anisotropic Sand Behavior Accounting for Rotation of Principal Stress Direction
Publisher: ASCE
Abstract: The rotation of the principal stress direction has a significant influence on the stress–strain relation and deformation characteristics of sand. This study proposes a hypoplastic model to simulate the noncoaxial response ...
Novel Undrained Servomechanism in Discrete-Element Modeling and Its Application in Multidirectional Cyclic Shearing Simulations
Publisher: ASCE
Abstract: Multidirectional shearing of granular soils involves shearing more than one shear stress component, and thus may result in more-complex soil responses than unidirectional shearing. This study developed an advanced numerical ...
Bounding Surface Plasticity Model for Clay under Cyclic Loading Conditions Considering Fabric Anisotropy
Publisher: ASCE
Abstract: Cyclic loading is encountered in several practical geotechnical problems. Understanding and modeling cyclic soil responses are key to engineering analysis and design. As one of the most distinct features of soils, fabric ...
Critical State for Anisotropic Granular Materials: A Discrete Element Perspective
Publisher: American Society of Civil Engineers
Lateral Bearing Performance of a Defective Pile-Supported Wharf with Batter Piles
Publisher: ASCE
Abstract: The lateral bearing performance of a defective pile-supported wharf located on a slope was investigated through centrifuge modeling, and a numerical model was employed to back-analyze the centrifuge test data. The pile ...
Undrained Responses of Anisotropic Granular Material under Rotational Shear by DEM
Publisher: ASCE
Abstract: The undrained response of sand under complex loading conditions involving principal stress rotation (PSR) is of particular interest in practical engineering. Although this subject has been studied extensively through ...
Multiscale Modeling of Fault Rupture–Soil–Foundation Interaction
Publisher: ASCE
Abstract: A multiscale approach that couples the finite-element method (FEM) and the discrete-element method (DEM) is used to model and analyze the earthquake fault rupture–soil–foundation interaction (FR–SFI) problem. The approach ...
Discrete-Element Quantification of the Noncoaxiality of Anisotropic Granular Materials under Orientational Rotational Shear
Publisher: American Society of Civil Engineers
Abstract: The discrete-element method was employed to investigate the macro- and micromechanical behaviors of anisotropic granular specimens using orientational rotational shear (ORS) tests. The variations in the initial fabric ...
Large Deformation Finite-Element Simulation of Displacement-Pile Installation Experiments in Sand
Publisher: ASCE
Abstract: Displacement piles are driven to support a wide range of structures. Predicting their axial limiting capacities and load-displacement behavior is critical to many such engineering applications. Although field load tests ...
Undrained Cyclic Response of K0–Consolidated Stiff Cretaceous Clay under Wheel Loading Conditions
Publisher: ASCE
Abstract: Optimal whole life design for railways, highways, runways, and metro lines requires an accurate assessment of how their underlying geomaterials respond to large numbers of wheel-loading cycles. This paper presents an ...