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Behavior of Ellipsoids of Two Sizes
Publisher: American Society of Civil Engineers
Abstract: The influence of particle shape on granular material response is examined by using the discrete element method. Triaxial drained and undrained tests were performed on specimens of ellipsoids of two sizes. The triaxial test ...
Discrete Element Method Simulations of the Critical State of a Granular Material
Publisher: American Society of Civil Engineers
Abstract: The critical state of a granular material was investigated by performing cubical triaxial simulations using the discrete element method. These samples, assemblages of ellipsoids of two kinds, were prepared either by settling ...
Fabric Study of Granular Materials after Compaction
Publisher: American Society of Civil Engineers
Abstract: Numerous micromechanical models have been developed based on assemblies of spherical particles with certain fabric distributions. Most of these distributions are hypothetical, and only very few of them can be determined ...
Triaxial Test Simulations with Discrete Element Method and Hydrostatic Boundaries
Publisher: American Society of Civil Engineers
Abstract: A new boundary condition has been developed for the discrete element method. This boundary is different from the conventional periodic, rigid, or flexible boundries. This new boundary mechanism was developed to simulate ...
Edge Effects in Pressurized Membranes
Publisher: American Society of Civil Engineers
Abstract: Developing membrane structures for space-based applications is an effort to reduce launch mass and stowed volume. Accurate modeling of the shape after deployment is very important to the high-precision inflatable structures ...
Fabric Evolution of Ellipsoidal Arrays with Different Particle Shapes
Publisher: American Society of Civil Engineers
Abstract: Fabric evolution of ellipsoidal arrays under drained triaxial compression loading was obtained by the discrete element method. The ellipsoidal arrays (specimens) consist of 520 identical ellipsoidal particles. The effect ...
Input Parameters of Discrete Element Methods
Publisher: American Society of Civil Engineers
Abstract: This paper presents a sensitivity analysis of the input parameters of a program based on the discrete element method (DEM). Triaxial compression simulations were conducted on an assembly of ellipsoids with two particle ...
Ultimate State of Samples of Ellipsoids under Different Stress Paths
Publisher: American Society of Civil Engineers
Abstract: The ultimate state of granular material was investigated by the discrete element method. This paper discusses a series of numerical triaxial tests on samples of two kinds of ellipsoids. Samples of three different densities ...
Assessment of Liquefaction Potential Using Optimum Seeking Method
Publisher: American Society of Civil Engineers
Numerical Simulations of Monotonic and Cyclic Loading of Granular Soil
Publisher: American Society of Civil Engineers
Abstract: The paper explores the use of discrete element simulations to model granular soil response to monotonic and cyclic loading. Two‐ and three‐dimensional random arrays of quartz spheres of various diameters are used that ...