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Now showing items 3920-3939 of 9103
Finite Element Modeling of Skewed Reinforced Concrete Bridges and the Bond-slip Relationship Between Concrete and Reinforcement
(2007-12-15)
A bridge deck on US 331 near Montgomery, AL developed transverse and longitudinal cracking a few months after construction was completed. A refined finite element model of this continuous, skewed, composite bridge was ...
Finite Element Modelling of Large Area Maintenance Shelters and Comparison to Experimental Results
(2021-08-16)
Large area maintenance shelters (LAMS) are used as temporary structures by the United States Air Force to provide shelter for helicopters, tanks, wheeled vehicles, and aircraft. There are several different brands of LAMS ...
Finite Element Simulation and Assessment of Single-Degree-of-Freedom Prediction Methodology for Insulated Concrete Sandwich Panels Subjected to Blast Loads
(2011-01-05)
This report discusses simulation methodologies used to analyze large deflection static and dynamic behavior of foam-insulated concrete sandwich wall panels. Both conventionally reinforced cast-on-site panels and ...
Finite Element Simulation of Metal Cutting using LS Dyna
(2011-07-29)
The current study focuses on building a 2-Dimensional finite element model to simulate the orthogonal machining process under a dry machining environment in a commercially available FEA solver LS Dyna. One of the key ...
Finite Element Simulation of Precast/Prestressed Insulated Sandwich Panels Optimized for Construction of Government Facilities
(2014-05-02)
This report discusses the development of finite element modeling methodologies for the static and dynamic response of insulated sandwich panels to uniform pressure loads. Experimental testing, which included solid panel ...
A Finite Element Study of an Elastic- Plastic Axisymmetric Sinusoidal Surface Asperity in Contact Against a Rigid Flat with Strain Hardening
(2018-04-17)
With the advancement in science and the introduction of new technology, computational modelling of contact between rough surfaces has attracted a great deal of attention. Researchers have developed many rough surface contact ...
A Finite Volume Implementation of the Shallow Water Equations for Boussinesq Gravity Currents
(2012-07-16)
The shallow water equations (SWE) are a powerful tool for modeling the propagation of gravity currents (GC) because of their relative simplicity, computational efficiency and accuracy. Finite difference solutions, either ...
Finite-Element Modeling of a Damaged Prestressed Concrete Bridge
(2007-05-15)
Spans 10 and 11 of the Interstate Highway 565 bridge structure in Huntsville, Alabama were noticed to be cracked shortly after their construction. Alabama Department of Transportation (ALDOT) employees investigated and ...
Finite-Element Modeling of Early-Age Concrete Behavior
(2018-07-24)
Early-age cracking of concrete may influence the long-term durability of a structure. Cracking occurs when the tensile stress in concrete exceeds its tensile strength. Early-age stress development in concrete is influenced ...
Finitely Generated Modules Over Noncommutative Chain Rings
(2011-10-26)
The notion of a right chain ring, a ring whose lattice of right ideals is linearly ordered by inclusion, is a generalization of a valuation ring. In this work we investigate properties of right chain rings and the structure ...
Firm Hedging Decision and Its Value Implication
(2022-07-21)
In Chapter 1, we study the impact of increased transparency in the reporting of OCI on firms’ foreign currency cash flow hedging practice and the value relevance of this change. We find a reduced level of foreign currency ...
First Generation College Students in the Alabama Community College System: Outcomes and Implications for School Counselors and Educators
(2019-08-08)
Enrolling in and completing college can be especially challenging for first generation in college (FGC) students. The purpose of the present quantitative study was to investigate the demographic and academic characteristics ...
First Innovator States: An Ecological Analysis of Innovation and Diffusion of Policies to Address College Student Financial Insecurity in the American States.
(2020-04-08)
The issue of college student financial insecurity has risen to the political agenda of post-secondary institutions and states since the Recession of 2007 – 2009. This need is driven by stark increases in the cost of college ...
First Principle Studies on Ground and Excited Electronic States: Chemical Bonding in Main-Group Molecules, Molecular Systems with Diffuse Electrons, and Water Activation using Transition Metal Monoxides
(2021-03-01)
Potential energy profiles can be used to investigate the origins of chemical bonding of molecules. Such profiles were adopted to show the propagation of lone pair electrons of N2(X1Σg+) to the vacant orbital of O(1D) or ...
First Steps for First Gen: An exploration of the experiences of first generation college students during the formal processes of enrolling in higher education
(2024-04-22)
The Center for First Generation College Student Success (2020) defined first generation college students (FGCS) as, “an undergraduate student whose parents do not have a bachelor’s or higher degree.” FGCS have to navigate ...
First Year Student Perceptions and Effectiveness of Social Media Influence in College of Agriculture Retention Efforts in Southeastern Land-Grant Universities
(2020-11-20)
With young adults leading the way in social media usage, it has not gone unnoticed by Colleges of Agriculture administrators who want to connect with students where they are. This generation is more wired than any generation ...
First-Generation OTC Antihistamine Use and Voice Function: A preliminary study
(2024-05-02)
Objectives/Hypothesis: The primary goal of this investigation was to characterize the effect of the first-generation, over-the-counter antihistamine, Chlor-Trimeton on laryngeal structure and function.
Study Design: ...
First-principles Theoretical Study of Lattice Thermal Conductivity of Crystals and Earth Minerals at High Temperatures and Pressures
(2013-03-20)
The focus of this dissertation is the first-principles calculation of lattice thermal
conductivity, a non-equilibrium thermal transport property, for a wide range of solid
materials including both ideal crystals and iron ...
Fiscal Policy and the Growth of Foreign Direct Investment in Sub-saharan Africa (Selected Countries: Ghana, Kenya, Nigeria, and South Africa)
(2005-12-15)
This study evaluates the impacts of fiscal policy on foreign direct investment (FDI) in the Sub Saharan Africa (SSA) region, focusing on the selected countries of Ghana, Kenya, Nigeria, and South Africa. The study further ...
Fischer Tropsch Catalyst Structures & Process Design for JP-5 Fuel Integrated with MFEC
(2010-05-11)
Modern societies are seeking new sources and corresponding technology as traditional fossil fuels are becoming more difficult to access because of their remote locations. A potentially attractive solution is to convert ...