Browsing by Subject "Mechanics"
Now showing items 1-20 of 20
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A Computational Framework for Fracture Modeling in Coupled Field Problems
(2018)This dissertation proposes a family of computational frameworks for fracture modeling in coupled field problems. Fracture mechanics has been a topic of considerable interest for several decades due to the wide existence ... -
A Study of Non-Smooth Impacting Behaviors
(2015)The dynamics of impacting components is of particular interest to engineers due to concerns about noise and wear, but is particularly difficult to study due to impact's non-linear nature. To begin transferring concepts studied ... -
A Variational Framework for Phase-Field Fracture Modeling with Applications to Fragmentation, Desiccation, Ductile Failure, and Spallation
(2021)Fracture is a common phenomenon in engineering applications. Many types of fracture exist, including, but not limited to, brittle fracture, quasi-brittle fracture, cohesive fracture, and ductile fracture. Predicting fracture ... -
Acoustic resonators with integrated microfluidic channels for ultra-high Q-factor: a new paradigm for in-liquid gravimetric detection
(2023)Biosensing is a critical area of research that involves detecting and measuring biological molecules. Among the various types of biosensors, acoustic biosensors are attractive for their simplicity, robustness, and low cost, ... -
Active Surfaces and Interfaces of Soft Materials
(2014)A variety of intriguing surface patterns have been observed on developing natural systems, ranging from corrugated surface of white blood cells at nanometer scales to wrinkled dog skins at millimeter scales. To mimetically ... -
ADAPTIVE LOCAL REDUCED BASIS METHOD FOR RISK-AVERSE PDE CONSTRAINED OPTIMIZATION AND INVERSE PROBLEMS
(2018)Many physical systems are modeled using partial dierential equations (PDEs) with uncertain or random inputs. For such systems, naively propagating a xed number of samples of the input probability law (or an approximation ... -
Adaptive Spline-based Finite Element Method with Application to Phase-field Models of Biomembranes
(2015)Interfaces play a dominant role in governing the response of many biological systems and they pose many challenges to traditional finite element. For sharp-interface model, traditional finite element methods necessitate ... -
Assessing the Role of Initial Imperfections in Cylinder Buckling Using 3D Printing
(2019)This thesis assesses the role of several types of designed initial imperfection on the buckling behavior of 3D printed cylindrical shells through experimental method. The buckling loads and paths are given by the ... -
Derivation of a continuum model and the energy law for moving contact lines with insoluble surfactants
(Physics of Fluids, 2014-06-05)A continuous model is derived for the dynamics of two immiscible fluids with moving contact lines and insoluble surfactants based on thermodynamic principles. The continuum model consists of the Navier-Stokes equations for ... -
Finite Element Methods for Interface Problems with Mesh Adaptivity
(2015)This dissertation addresses interface problems simulated with the finite element method (FEM) with mesh adaptivity. More specifically, we concentrate on the strategies that adaptively modify the mesh and the associated data ... -
Model Reduction and Domain Decomposition Methods for Uncertainty Quantification
(2017)This dissertation focuses on acceleration techniques for Uncertainty Quantification (UQ). The manuscript is divided into five chapters. Chapter 1 provides an introduction and a brief summary of Chapters 2, 3, and 4. Chapter ... -
Modeling of Nonlinear Viscoelastic Solids with Damage Induced Anisotropy, Dissipative Rolling Contact Mechanics, and Synergistic Structural Composites
(2013)The main objectives of this research are: (i) to elaborate a unified nonlinear viscoelastic model for rubber-like materials, in finite strain, accounting for material softening under deformation, and for damage ... -
Nanomechanics of Nucleic Acid Structures Investigated with AFM Based Force Spectroscopy
(2010)Nucleic acids are subjected to many different mechanical loadings inside. These loadings could cause large deformations and conformational changes to these molecules. This is why the mechanical properties of nucleic ... -
On the Asymptotic Reduction of Classical Modal Analysis for Nonlinear and Coupled Dynamical Systems
(2016)Asymptotic Modal Analysis (AMA) is a computationally efficient and accurate method for studying the response of dynamical systems experiencing banded, random harmonic excitation at high frequencies when the number of responding ... -
Otome Games: Narrative, Gender and Globalization
(2019-04-04)The goal of the thesis is to answer the question of how otome (maiden) games, despite their heavily cultured origins, have been able to create playable romance narratives that a global audience can understand, relate, play, ... -
Postponing the dynamical transition density using competing interactions
(Granular Matter, 2020-08-01)Systems of dense spheres interacting through very short-ranged attraction are known from theory, simulations and colloidal experiments to exhibit dynamical reentrance. Their liquid state can thus be fluidized at higher densities ... -
Rolling Isolation Systems: Modeling, Analysis, and Assessment
(2013)The rolling isolation system (RIS) studied in this dissertation functions on the principle of a rolling pendulum; an isolated object rests on a steel frame that is supported at its corners by ball-bearings that roll between ... -
Scalable Genome Engineering in Electrowetting on Dielectric Digital Microfluidic Systems
(2015)Electrowetting-on-dielectric (EWD) digital microfluidics is a droplet-based fluid handling technology capable of radically accelerating the pace of genome engineering research. EWD-based laboratory-on-chip (LoC) platforms ... -
The Shifted Interface/Boundary Method for Embedded Domain Computations
(2021)Numerical computations involving complex geometries have a wide variety of applications in both science and engineering, including the simulation of fractures, melting and solidification, multiphase flows, biofilm growth, ... -
Whole body mechanics of stealthy walking in cats.
(PLoS One, 2008)The metabolic cost associated with locomotion represents a significant part of an animal's metabolic energy budget. Therefore understanding the ways in which animals manage the energy required for locomotion by controlling ...
