Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 20 of 88 for “"lattice model"”.
-
The State-Based Peridynamic Lattice Model
The reigning material model of today is continuum mechanics. Continuum mechanics assumes that a material is continuous and can be represented by mathematical functions. This is an unreasonable assumption for concrete due in part to the fact that concrete cracks and the continuum mechanics model …
-
Dynamics from an equilibrium lattice model of a microemulsion
<p>A 3D lattice model of three-component microemulsion employed previously to describe the equilibrium phase behavior has been extended to investigate the nonequilibrium dynamics of such system. The model is based on "Dynamical Monte Carlo" simulations which apply a coarse-grained velocity field …
-
Interacting non-Abelian anyons in an exactly solvable lattice model
… emerge as vortices in Ki-taev's honeycomb spin lattice model. By generalizing the solution of the model, we explicity demonstrate the non-Abelian fusion rules and the braid statistics that charaterize the anyons. This is based on showing the presence of vortices leads to zero modes in the …
-
The State-based Peridynamic Lattice Model and Reinforced Concrete Structures
… his idea to develop the state-based peridynamic lattice model (SPLM). The SPLM sufficiently models nonlinear deformation fields using an organized lattice, force states, and stretches. In this thesis, we use, develop, and modify the SPLM to model reinforced concrete structures. We use the SPLM to …
-
Elastic-plastic-brittle transitions using anti-plane elastic spring lattice model
Item withdrawn by Mark Zulauf (zulauf@illinois.edu) on 2012-12-12T17:17:28Z Item was in collections: University of Illinois Theses & Dissertations (ID: 1) No. of bitstreams: 3 Kale_Sohan.pdf: 2772367 bytes, checksum: 98b630c1abd6006770e7fb347c8c4985 (MD5) Kale_Sohan.docx: 6391827 bytes, checksum: …
-
ANALYSIS OF BRAZILIAN SPLIT CYLINDER USING THE STATE BASED PERIDYNAMIC LATTICE MODEL
… peridynamics, which involves nonlocal solid modelling upon a continuous material space. Walter Gerstle developed a practical application of the peridynamic model for solid mechanics called the state-based peridynamic lattice model (SPLM). This approach involves material modelling with a …
-
Quantics Tensor Trains: The Study of a Continuous Lattice Model and Beyond
… The second chapter centers around the XY model. Quantics tensor trains are used to describe the transfer matrix of the model and compute one and two-dimensional quantities. The one dimensional magnitudes are compared to analytical results with an agreement close to machine precision. As …
-
Visualization of wave propagation in elastic solids using a mass-spring lattice model
Thesis (M.S.V.S.)--Massachusetts Institute of Technology, Dept. of Architecture, February 1990.
-
Three-dimensional multi-scale hydraulic fracturing simulation in heterogeneous material using Dual Lattice Model
… simulations are uncommon, in particular, modelling material as a heterogeneous medium. Lattice Element Method (LEM) is therefore proposed for multi-scale simulation of heterogeneous material. In LEM, material is discretised into cells and their interactions are modelled by lattices, hence …
-
Phase diagram for the S equals one-half and J equals three-halves Kondo lattice model
A Kondo lattice Hamiltonian for arbitrary total angular momentum J is formulated using a pseudofermion representation and without addition of RKKY interaction terms. An Hartree-Fock treatment is applied, and both variational and Green's function methods are used to calculate physical quantities …
-
A Gillespie-Type Algorithm for Particle Based Stochastic Model on Lattice
… simulation algorithm for particle based lattice model using the concepts of Gillespie's stochastic simulation algorithm, which was originally designed for well-stirred systems. I describe the details about this method and analyze its complexity compared with the StochSim algorithm, …
-
Lattice modeling of ultrasonic nondestructive evaluation of attenuating materials
… polymeric composites. Thus, an accurate model of ultrasonic wave propagation in nanocomposites as well as several other modem composites must include attenuation. Lattice modeling is a heuristic approach that consists of the discretization of solids into regularly spaced particles …
-
Wave propagation in finite element and mass-spring-dashpot lattice models
… comparisons of a four-node finite element model (FEM), a mass-spring lattice model (MSLM), and a mass-spring-dashpot lattice model (MSDLM) are investigated. Specifically, the error in the ultrasonic phase speed with variations in Poisson's ratio and angle of incidence is evaluated in each …
-
Wave propagation in finite element and mass-spring-dashpot lattice models
… comparisons of a four-node finite element model (FEM), a mass-spring lattice model (MSLM), and a mass-spring-dashpot lattice model (MSDLM) are investigated. Specifically, the error in the ultrasonic phase speed with variations in Poisson's ratio and angle of incidence is evaluated in each …
-
Improving Genetic Analysis with Augmented Experimental Designs
… addressed this problem by extending the genetic models with augmented experimental designs. Without losing the focus, two extended genetic models were proposed: generalized lattice model and sub-block model. A modeling frame work was provided for these extended genetic models using mixed linear …
-
Mechanisms of biochemical reactions within crowded environments
… on biochemical processes. First, we propose a lattice model to study the implications of molecular crowding on enzymatic reactions. We provide a detailed picture of how crowding affects binding and unbinding events and how the separate effects of crowding on binding equilibrium act together. …
-
Deformations of characters, metaplectic Whittaker functions, and the Yang-Baxter equation
… between characters of representations and lattice models in statistical mechanics. The bridge was first formed from Kuperberg's solution to the alternating sign matrix (ASM) conjecture. Kuperberg's proof of this conjecture, which enumerates ASMs, utilized a Yang-Baxter equation for a square …
-
Three-Dimensional Unsteady Hydrodynamics of Tidal Turbines
… addressed by identifying the shortcomings of the models currently used to estimate unsteady forces on turbines due to gusts, and by providing new low-order modelling tools for more accurate calculations of these forces. The focus of this thesis is on the assumption of locally two-dimensional (2D) …
-
Engineering topology and correlation in epitaxial thin film kagome metals
… energies of individual constituents. The kagome lattice is a generalized lattice model whose characteristic atomic arrangement produces both topological Dirac bands and correlated flat bands. In search of its material realizations, kagome metals, a class of intermetallics containing the …
Page 1 of 5