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.
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Showing 1 to 20 of 57 for “"Finite Element (FE) Models"”.
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Geometric and Kinematic Validation Studies in the Thoracic and Abdominal Regions of a Detailed Human-Body Finite Element Model
… statistics, there is a need to improve vehicle safety countermeasures. Researchers and engineers use a number of tools to accomplish this goal, but the studies in this thesis focus on one in particular; computational modeling of the human body designed for predicting injury in simulated crash …
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Numerical Modelling and Analysis on Structural Behaviour of Composite Slim-Floor Beams
… 1: Based on push out tests of shear connectors, FE model developed and validated, parameter study conducted, and a simple design calculation method (the Correlation Strain Method and the Direct Stress Method) is proposed to predict the load bearing capacity of concrete dowel shear connector. Part …
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An Anatomically Representative Atlas-Based Finite Element Model of the Human Brain for Studying Brian Injury Biomechanics: Development, Validation and Comparison to Existing Models
… we can study brain response using validated finite element (FE) models. In the current study, a high-resolution, anatomically accurate FE model was developed from the International Consortium for Brain Mapping (ICBM) brain atlas. Due to the wide variation in published brain material …
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Elbow Joint Contact Mechanics: Multibody and Finite Element Methods
Only a few millimeter thick articular cartilage is a very specialized connective tissue which withstands high compressive and shear forces while protecting the bone from excessive loading, and provides a smooth articulation for the joint. Better understanding of elbow cartilage contact mechanics …
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A Formulation for Updating Finite Element Models Through Consistent Use of Laser Vibrometer Data
… physically meaningful parameters in analytical finite element(FE) models using scanning laser Doppler vibrometer(SLDV) dynamic response data. The update formulation is demonstrated in several computer simulations. The formulation is the result of incorporating an analytical FE model into an …
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Analytical Modeling of the Repair Impact-Damaged Prestressed Concrete Bridge Girders
… and five repair method tests. Nonlinear beam models and three-dimensional finite element (FE) models were created to predict the behavior of the beams under flexural testing, and subsequently validated and calibrated to experimental test data. The very good accuracy of the beam models …
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Development of a Full-Body CAD Dataset for a Computational Model of the 5th Percentile Female
… are using a variety of tools, including finite element (FE) models, to develop and evaluate vehicle safety devices. Such models are often developed to represent an average (50th percentile by height and weight) male occupant. However, a 2011 study from the University of Michigan …
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Correlating with Local Variation in Collagen Level and Mechanical Properties of the Heart Tissues
… tissue properties is essential in constructing finite element (FE) models of the heart. To obtain accurate results, especially for functionally modeling the heart, we must determine the tissue properties in-vivo. The calculation of the heart tissue properties remains a challenging area as it is …
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A Low Cycle Fatigue Testing Framework for Evaluating the Effect of Artifacts on the Seismic Behavior of Moment Frames
… the word artifact is used to describe both defects and fasteners that create discontinuities in the steel such as notches, nicks, welds, powder actuated fasteners, self-drilling screws, repaired defects, and others. Although artifacts occur in real structures and their presence may affect the …
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Structural Vulnerability of Coastal Bridges Under Hurricane Conditions
… hurricane-induced wave impact. High-fidelity finite element (FE) models were developed within ABAQUS, utilizing a Coupled Eulerian Lagrangian (CEL) analysis, to provide a cost-effective approach for evaluating bridge behavior under various hydrodynamic conditions. An experimental scaled model …
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Machine Learning Based Analysis Of Civil Infrastructure In The Presence Of Sparse Data
… engineering demand parameters (EDPs) via finite element (FE) models, which incorporate uncertainties in earthquake events and material properties, limits the application of the Performance-Based Earthquake Engineering (PBEE) framework. Previous efforts to replace FE models with surrogate …
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Finite element and mechanobiological modelling of vascular devices
… aim of this thesis was to develop computational models that could assist in the design of vascular stents and tissue engineered vascular grafts and scaffolds. In this context, finite element (FE) models of stent expansion in idealised and patient specific models of atherosclerotic arteries were …
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Predicting off-axis bone strength of the distal radius using high-resolution peripheral quantitative computed tomography based finite element modeling
… of the distal radius can be estimated using finite element (FE) models generated from high-resolution peripheral quantitative computed tomography (HR-pQCT) images; however, these models are limited because they determine failure load under pure compressive loading conditions and neglect …
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Seismic Rehabilitation of Steel Concentrically Braced Frames Vulnerable to Soft-Story Failure Through Implementation of Rocking Cores
… causes catastrophic outcomes and should be definitely avoided in practice. This thesis focuses on development and validation of a seismic retrofit strategy for low-rise and mid-rise steel CBFs vulnerable to soft-story failures. The considered retrofit strategy consists of a sufficiently stiff …
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Reaction Wheel Ball Bearings Microvibration Source Characterisation
… unbalances, assembly misalignments and imperfections affecting the ball bearing components, are some of the main causes that generate microvibrations disturbances onboard, affecting the pointing stability of the satellite line-of-sight. The work presented in this thesis aims to characterize …
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Design and development of advanced vibration and noise control devices using finite element analysis
… presents the development and validation of the finite element (FE) models to understand the physics behind the functionality of these vibration absorbers. The development of these FE models can be broadly classified in to three stages. In the first stage, the FE models of the individual …
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Parametric Design and Optimization of an Upright of a Formula SAE car
… variations in components can significantly affect performance and, consequently, lap times. At the heart of a race car's performance lies the upright—a critical component of its suspension system. The upright serves to link the suspension arms to the wheels, effectively transmitting steering …
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Behavior and design of steel-plate composite (SC) walls for blast loads
… (RC) structures have historically been the preferred choice for blast resistant structures because of their mass and the ductility provided by steel reinforcement. Steel-plate composite (SC) walls are a viable alternative to RC for protecting the infrastructure against explosive threats. SC …
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Seismic Rehabilitation of Steel Moment Frames Vulnerable to Soft-Story Failures Through Implementation of Rocking Cores
… in the SAC Steel Project, are considered. Finite Element (FE) models of the benchmark buildings are developed with consideration of member yielding, connection rupture, and P-Delta effect, and validated using published results. Eigenvalue analyses are conducted to investigate the effect of …
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Probabilistic Analysis of the Material and Shape Properties for Human Liver
… inter-subject variations into numerical human models. The main objective of this study was to quantify the variations in shape and material properties of the human liver. Statistical shape analysis was applied to analyze the geometrical variation using a surface set of 15 adult human livers …
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