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 26 for “"Material Modeling"”.
-
Material Modeling Through Inverse Analysis
… introduced to extract Red Blood Cells (RBCs) material stress-strain behavior from measurements of forces and displacements obtained by optical tweezers techniques. Deformation characteristics of RBCs are closely linked to disease (e.g. malaria) progression and hold promise as a tool for …
-
Neural network-based material modeling
A neural network-based material modeling methodology for engineering materials is developed in this study. With this material modeling methodology, the stress-strain behavior of a material is captured within the distributed weight structure of a multilayer feedforward neural network trained …
-
Exploring Immersed FEM, Material Design, and Biological Tissue Material Modeling
… Method (IIFEM) for shape optimization and material design, while also investigating the modeling and parameterization of lung tissue for Diver Underwater Explosion (UNDEX) simulations. In the first part, a shape optimization scheme utilizing a four-noded rectangular immersed-interface …
-
Nonlinear material modeling and finite element analysis of V-ribbed belts
"The V-ribbed belt-drive system has become increasingly important to the automotive industry. There is a need to understand the operational characteristics of these belt-drive systems for optimal design and manufacturing. A three-dimensional nonlinear finite element model was built to study the …
-
Material modeling and sensor characterization for optimizing footpad force sensing array
… were tested by applying displacements to the material. The experimental force and voltage from the pressure sensor were recorded. The thesis aims to provide a Finite Element Analysis (FEA) model in Abaqus that accurately simulates and models the footpad sensors and is validated by the physical …
-
Development of a multi-physics tire model for wear and thermal estimation in the finite element environment
… of vehicle dynamics, tire wear and tire modeling is finite element techniques. For accurate static, steady-state, and dynamic tire mechanics in simulation, a highly accurate tire model needs to be modeled and validated in multiple domains. This research focuses on the modeling and …
-
The residual strength determination due to fatigue loading by fracture mechanics in notched composite materials
… amplitude at room temperature, by using a material modeling approach, fracture and fatigue mechanics and the finite element method (FEM). For simplicity, after thousands of cycles, the geometry of a circular hole of the deformed laminate was categorized as (1) uniformly expanded hole into …
-
Coupled Fluid-Structure Interaction Modeling of a Parafoil
… computational model to tackle the challenges of modeling a highly-flexible, porous fabric for design optimization of a parafoil parachute’s transient performance. Canopy deformations of a single-cell square parafoil using a fluid-structure interaction (FSI) model with nonlinear material modeling …
-
Dynamic Multivariate Simplex Splines For Volume Representation And Modeling
<p>Volume representation and modeling of heterogeneous objects acquired from real world are very challenging research tasks and playing fundamental roles in many potential applications, e.g., volume reconstruction, volume simulation and volume registration. In order to accurately and efficiently …
-
Quality-Centric Single-Image Procedural Material Generation
Procedural materials, represented as functional node graphs, are ubiquitous in computer graphics for photorealistic material appearance design. They allow users to perform intuitive and precise editing to achieve desired visual appearances. However, even for experienced artists, creating a …
-
Computational Design of Viscoelastic Gels with Tunable Mechanical Energy Dissipation
The development of engineered materials that exhibit mechanical characteristics similar to biological tissues can enable testing the effect of ballistics and designing of protective equipment. The physical instability of existing tissue simulants over long times and ambient temperatures has …
-
Modeling and simulations of low dimensional and nanostructured materials systems at the nanoscale
The properties of a broad range of materials are due to processes which occur at the nanoscale. Recently, an increasing interest has been devoted to nanostructured materials, in which the basic components are nanoscopic, and low-dimensional nanomaterials such as nanoparticles, nanowires and layered …
-
Fracture of welded aluminum thin-walled structures
… aluminum thin-walled structures, which includes material modeling, calibration, numerical simulation and experimental verification. An extensive experimental program was conducted on large-scale welded panels used on Inter City Express (ICE) high-speed European passenger trains. These panels …
-
Towards material-informed tectonics
… a unified computational design framework for material distribution modeling that enables the production of geometrically complex, materially heterogeneous, and functionally graded objects, across scales, media, and platforms. Receiving user-defined performance mappings as input, the workflow …
-
First and Second-Principles Atomistic Modelling of Ge-Sb-Te Phase-Change Memory Materials
Phase-change memory materials are semiconductors with a fast and re- versible transition between a resistive amorphous phase and a conductive crystalline phase. A sufficiently large contrast in electrical resistivity can be used to read and write bits of information, as encoded in the struc- ture …
-
Calibration of sonographic gel probe covers for in-vivo mechanical testing
… with the necessary information to be used in material modeling and improve diagnosis of cervical insufficiency. The device consists of an ultrasound probe, enclosed by a gel-filled cover. The mechanical properties of the covers vary with each cap as well as with time and temperature. …
-
Constitutive modeling of the thermo-mechanics associated with crystallizable shape memory polymers
This research addresses issues central to material modeling and process simulations. Here, issues related for developing constitutive model for crystallizable shape memory polymers are addressed in details. Shape memory polymers are novel material that can be easily formed into complex shapes, …
-
Transformer Thermal Assessment under Geomagnetically Induced Current Conditions
… failure. As a result, transformer thermal modeling is essential in the design and operation stage to represent the thermal behavior of transformers during normal operation or transient phenomena. However, the multi-physics behavior of transformers and the nonlinear and frequency-dependent …
-
Advancing AFM Nanometrology Through Experimental FSI Quantification, Novel Sensor Design, and Fractional ODE-based Material Models
Nanometrology, which is the study of materials at the nanoscale, has been an important topic for the material science community at large. Atomic Force Microscopy (AFM) has become an indispensable tool to perform nanometrology. Especially, contact resonance (CR) AFM has been used to perform accurate …
Page 1 of 2