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Showing 1 to 20 of 28 for “"FE Modeling"”.
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Fe Modeling In Support Of Vibration Based Damage Detection In Bridges
… relationship is explored through finite element modeling of primarily an experimental representation of a three-span concrete bridge structure located at the entrance to the main campus of The University of Mississippi in Oxford. Equivalent beam and 3D finite element models are created of an …
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Analysis of Delamination in Thick Section Composite Materials Using Homogenized FE Modeling
For thick section composites, the proposed interface model is incorporated into an existing homogenized constitutive model. The interface is treated as one of the layers constituting the repeating sublaminate, which is the basic building block of the thick section laminate. This homogenized model …
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Microstructure-based FE Modeling and Measurements of Magnetic Properties of Polymer Matrix-Metal Composites
… modifying the magnetic composite is preferred. The most popular candidates for use in magnetic composites are magnetic powders and polymer composites. In particular, when metal alloys are chosen as magnetic powders they have high initial permeability, high saturation magnetization …
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Middle-Ear Imaging and Estimation of The Linear Elastic Properties of The Human Tympanic Membrane
Finite-element (FE) modeling of the human middle ear could improve diagnostic techniques, such as tympanometry. Accurate representation of the mechanical properties and geometry of the middle ear, especially of the soft tissues, are crucial for FE modeling of the middle ear. The objective of this …
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Probabilistic Seismic Assessment of Structure, Foundation, and Soil Interacting Systems
… and without soil-structure interaction. Four different approaches of Soil-Structure Interaction (SSI) are tried: (a) Abutments and foundations are assumed to be fixed, (b) Conventional lumped spring approaches are adopted to model abutments and foundations, (c) Lumped springs for abutments and …
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Biomechanical analysis of traumatic brain injury by MRI-based finite element modeling
The finite element (FE) modeling is a powerful tool for investigating the physical process producing head trauma, and a well validated model would, thus, be a valuable tool to aid in injury diagnosis and design of protective devices. Many FE head models with various degrees of simplification have …
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Automation and Expert System Framework for Coupled Shell-Solid Finite Element Modeling of Complex Structures
Finite Element (FE) analysis is a powerful numerical technique widely utilized to simulate the real-world response of complex engineering structures. With the advancements in adaptive optimization frameworks, multi-fidelity (coupled shell-solid) FE models are increasingly sought during the early …
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Theoretical and Computational Generalizations on Hyperthermia using Magnetic Nanoparticles including Optimization, Control, and Aggregation
… and cope with aggregation using Finite Element (FE) Modeling and statistical physics. The FE model is first used to demonstrate the advantages of changing IONP heat dissipation in time, which can increase energy density inside tumors while decreasing the energy delivered in healthy tissue. Here, …
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Development, Validation, & Analysis of Tools to Understand the Biomechanical Basis of Exposure to Repetitive Subconcussive Impacts
… impacts is not well understood. Finite element (FE) modeling is a powerful tool that allows evaluation of local and regional strain response to understand its relationship to impact characteristics, such as location, direction and magnitude.
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Morphology of Brain Sulci Trabeculae and its effect on Brain during Impacts
… play an important role in damping the effect of an impact, thus reducing the injuries. However, the influence of sulci parameters and the sulci trabeculae in TBI due to impact is unexplored. Studies have shown that inclusion of sulci in brain models alters the strain in the brain, …
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Design of One-Story Hollow Structural Section (HSS) Columns Subjected to Large Seismic Drift
… but also the boundary conditions are not perfectly pinned or fixed. In this research, the behavior of steel columns that are square hollow structural sections (HSS) is investigated for stability using three design methods: elastic design, plastic hinge design, and pinned base design. First, …
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Validation of Subject Specific Computed Tomography-based Finite Element Models of the Human Proximal Tibia using Full-field Experimental Displacement Measurements from Digital Volume Correlation
… computed tomography-based finite element (QCT-FE) modeling is a computational tool for predicting bone’s response to applied load, and is used by musculoskeletal researchers to better understand bone mechanics and their role in joint health. Decisions made at the modeling stage, such as the …
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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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Dynamic Testing of In-Situ Composite Floors and Evaluation of Vibration Serviceability Using the Finite Element Method
… of a set of fundamental finite element (FE) modeling techniques to adequately represent the dynamic response of steel composite floors for the purpose of evaluating vibration serviceability. The measurement, analysis, and computation of a floor's accelerance frequency response function …
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Specimen-Specific Natural, Pathological, and Implanted Knee Mechanics Using Finite Element Modeling
… of the articulating surfaces), patellofemoral pain, and cruciate ligament injury and/or rupture. The complex behavior of knee motion presents unique challenges in the diagnosis of knee pathology and restoration of healthy knee function. Quantifying knee mechanics is essential for …
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Rectification of 2-D to 3-D Finite Element Analysis in Buried Concrete Arches Under Discrete Loading
… some designers have turned to finite element (FE)modeling as the main vehicle of analysis. Such numerical procedures provide an accurate approximation of physical behavior. Practices using FE analysis for buried arch design almost exclusively use two-dimensional models because they are faster …
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Influence of Bridge Parameters on Finite Element Modeling of Slab on Girder Bridges
… Bridge Performance Program (LTBP) funded by the Federal Highway Administration. The objectives of this program are to create a comprehensive database of quantitative information of the long-term performance of selected pilot bridges and to develop a methodology to assess bridge performance. …
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High-Resolution peripheral Quantitative Computed Tomography Based Finite Element Modelling of Distal Radius Strength: Assessing Effect of Heterogeneous Material Properties and Scan Site
… tomography (HR-pQCT) based finite element (FE) models of distal radius sections explains 66% of variance in experimental testing results on intact forearms under fall configuration testing. However, this FE model employs a somewhat simplistic modeling approach in that it does not account for …
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Experimental and Finite Element Evaluation of Mild Traumatic Brain Injury
… diagnosis, and treatment strategies for affected individuals.This dissertation explores the biomechanical and biological impacts of mTBI induced by blast exposure and rapid acceleration, focusing on both experimental replication and finite element (FE) modeling. In experimental studies, …
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DEVELOPMENT OF FATIGUE MODELS FOR COPPER TRACES ON PRINTED WIRING ASSEMBLIES UNDER QUASI-STATIC CYCLIC MECHANICAL BENDING
… bending fatigue tests, finite element (FE) modeling of the stresses generated during the cyclic bending tests, and response surfaces (RS) to facilitate iterative assessment of the model constants. Cyclic three-point bend tests were conducted on land grid array (LGA) components during …
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