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 46 for “"Finite element package"”.
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Computational wind engineering using finite element package ADINA
… for the different aerodynamic shapes. ADINA, a finite element package, contains an inbuilt turbulence model which will be used to construct four different shapes for comparison. Results are verified with the experimental and simulation data. The effect of increase in the Reynolds number on the …
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Crushing characteristics of axially stacked square tubes
… and dynamic axial crushing tests and FEM (finite element modeling). The simulation was carried out using the finite element package ABAQUS/Explicit 6.7.1. Lengths of the specimens ranged from 300mm to 1700mm encompassing the three main modes of buckling of square tube specimens; namely …
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Predicting Stress Development in Gray Iron Foundry Castings
… gray iron foundry castings. Using a commercial finite element package with a user written element formulation, stresses resulting from thermal displacements in the cooling casting are computed while accounting for cast iron's radically different behavior in tension and compression with a new …
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Three-dimensional mixed mode linear elastic fracture mechanics analysis using domain interaction integrals
… was analyzed using a commercially available finite element package to extract the stress intensity factors and the J-Integral. The results were then compared with those obtained from crack face relative displacements as a post-processing step. The model has been tested on various geometries …
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Characterization of hydrides and delayed hydride cracking in zirconium alloys
… is built using ABAQUS, which is a mature finite element package with tested modeling modules of a variety of physical laws. The coupling of hydrogen diffusion, lattice expansion, matrix deformation and phase transformation is investigated under striation crack growth conditions. The result …
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Modeling a solar energy collector with an integrated phase-change material
In this thesis, a finite-element computer model was created to simulate a solar air heater with an integrated-phase change material. The commercially available finite element package ADINA-Fluid was used to generate the model that captures the fundamental physical processes which are necessary in …
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Aspects of the drainage process in soils
… values were compared with results from finite element calculations. It was necessary for the candidate to devise a system for modifying an existing main-frame finite element package (ADINAT) in order to cope with the transient partly saturated draining state which exists above a falling …
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Error analysis for harmonic tracking algorithm using geometric control
… solving this control system using the finite element package "COMSOL".
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Induction motor fault recognition.
… of the experimental stator using a standard finite element package. The results from this analysis were compared with experimental results and shown to be realistic. The main conclusion drawn from this thesis is that there are several differences in the parameters observed during normal and …
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Modeling microwave heating of apple cylinders using hybrid mixture theory based transport equations coupled with Maxwell's laws of electromagnetism
… moisture loss in the food matrix. A commercial finite element package (COMSOL Multiphysics ver 4.4) was employed to solve these equations in order to obtain the spatial and temporal profiles for moisture and temperature within the sample. The validation experiments were conducted with a domestic …
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Design, Simulation, and Wind Tunnel Verication of a Morphing Airfoil
… actuation are predicted with the commercial finite element package NX Nastran. Placement of the piezoelectric actuator is studied for optimal effectiveness. A thermal analogy is used to represent piezoelectric strain. Lift and drag coefficients in low Reynolds number flow are explored with …
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Modeling picking on pharmaceutical tablets
… was developed in Abaqus a commercially available finite element package. The resulting model was used to investigate the influence of debossed feature geometry viz. the stroke angle and degree of pre-pick, and, influence of lubricant on picking. (Abstract shortened by ProQuest.)</p>
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A finite element analysis method for the crimping process of the piston-slipper component in hydraulic pumps
… always a serious concern. This study develops a finite element method aimed at analyzing the stresses, strains and load forces associated with the crimping process. Solving the large plastic deformation and contact problems are the focus of this analysis. This method can be used in the …
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Flexural-Torsional Coupled Vibration of Rotating Beams Using Orthogonal Polynomials
… references and with those obtained using NASTRAN finite element package.
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Fluid and structural modeling of the disease-free and atherosclerotic human carotid bifurcation
… are generated and imported into a commercial finite element package, ADINA (Automatic Dynamic Incremental Nonlinear Analysis, Watertown, MA) for computational analysis. Using three types of 3D transient finite element analyses: structure only, rigid walled fluid only and fully coupled …
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Nonlinear Finite Element Analyses of the End Web Crippling Strength of W-Shape Steel Beams
… steel beams was investigated by means of the finite element technique. The commercial finite element package ANSYS 6.0 was used to model the steel beams. Material nonlinearities, large deformation effects and initial geometric imperfections were taken into account in the finite element models. …
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Predicting the Influence of Hydrogen on Zirconium
… due to volumetric expansion. With the aid of Finite Element Analysis, this thesis describes models of the diffusion of hydrogen in response to gradients in stress, temperature, and concentration; the nucleation of hydride; and the growth of hydride. The commercial finite element code, ABAQUS® …
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The finite element of modelling of the dynamic behaviour of a transmission line conductor
… and useful tools of modern engineering, the finite element method, to the problem of modelling the dynamic behaviour of conductors. In modelling the conductor, the assumption that it may be treated as a solid continuum is made. Due to the construction of a conductor, however, the bending …
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School bus crashworthiness
… that the vehicle structure be modeled in a finite element package by discretizing the geometry into a number of elements.;Every day thousands of children travel to school and school related events by bus. Not necessarily all the journeys are short and safely driven. The potential for serious …
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Partially prestressed concrete internal square panel
… effects are studied with the help of a finite element package (PAFEC), representing the prestressing forces by equivalent vertical loads. From a variety of possible spacing arrangements, the distribution of prestressing moments is shown to be most effective in counteracting the moments …
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