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Relevant bibliographies by topics / Curvilinear elements / Dissertations / Theses

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Dissertations / Theses on the topic 'Curvilinear elements'

Author: Grafiati

Published: 4 June 2021

Last updated: 14 February 2022

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1

Connerley, David Roland. "Elements of a Chapel." Thesis, Virginia Tech, 2002. http://hdl.handle.net/10919/35963.

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Traditionally the role of a Chapel is to offer society a place to worship, find solitude, sanctuary, spiritual enlightenment, religious fulfillment, and its inspiration. In an effort to reinforce and accentuate these experiences, this project explores the architectural concepts of procession, transition, and materiality of a Chapel.<br>Master of Architecture

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2

Marais, Neilen. "Higher order hierarchal curvilinear triangular vector elements for the finite element method in computational electromagnetics." Thesis, Stellenbosch : Stellenbosch University, 2003. http://hdl.handle.net/10019.1/53447.

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Thesis (MScEng)--Stellenbosch University, 2003.<br>ENGLISH ABSTRACT: The Finite Element Method (FEM) as applied to Computational Electromagnetics (CEM), can be used to solve a large class of Electromagnetics problems with high accuracy, and good computational efficiency. Computational efficiency can be improved by using element basis functions of higher order. If, however, the chosen element type is not able to accurately discretise the computational domain, the converse might be true. This paper investigates the application of elements with curved sides, and higher order basis function

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3

Ellis, Truman Everett. "High Order Finite Elements for Lagrangian Computational Fluid Dynamics." DigitalCommons@CalPoly, 2010. https://digitalcommons.calpoly.edu/theses/282.

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A general finite element method is presented to solve the Euler equations in a Lagrangian reference frame. This FEM framework allows for separate arbitrarily high order representation of kinematic and thermodynamic variables. An accompanying hydrodynamics code written in Matlab is presented as a test-bed to experiment with various basis function choices. A wide range of basis function pairs are postulated and a few choices are developed further, including the bi-quadratic Q2-Q1d and Q2-Q2d elements. These are compared with a corresponding pair of low order bi-linear elements, traditional Q1-Q0

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4

Wagner, David. "A Finite Element-based Adaptive Energy Response Function Method for Curvilinear Progressive Fracture." Thesis, The University of Texas at San Antonio, 2018. http://pqdtopen.proquest.com/#viewpdf?dispub=10845946.

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<p> An adaptive arbitrary-order curvilinear progressive 2D crack growth algorithm is presented. The method uses the ZFEM hypercomplex finite element program to compute arbitrary order derivatives of strain energy with respect to self-similar or perpendicular crack extensions, and then constructs a family of Taylor series functions of strain energy versus crack growth direction. An adaptive algorithm automatically selects the best high-degree polynomial to extrapolate a curvilinear crack path, and adjusts the length of the crack growth increment added during each simulation step to maintain the

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5

Langley, Patrick Tyler. "Finite Element Modeling of Tow-Placed Variable-Stiffness Composite Laminates." Thesis, Virginia Tech, 1999. http://hdl.handle.net/10919/33476.

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Tow-placement machines have made it possible to manufacture curved-fiber composite tow paths. A composite structure with curved-fiber tow paths can be formed in a manner similar to filament winding. The result is a laminate with spatially varying stiffness and response. This manufacturing method can also result in overlap regions between adjacent tow paths. In previous research, a closed-form solution was developed to determine the response of these variable-stiffness laminates, but the overlap regions were not included in this model. Additionally, the fiber-orientation angle throughout th

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6

De, Shuvodeep. "Structural Modeling and Optimization of Aircraft Wings having Curvilinear Spars and Ribs (SpaRibs)." Diss., Virginia Tech, 2017. http://hdl.handle.net/10919/88467.

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The aviation industry is growing at a steady rate but presently, the industry is highly dependent on fossil fuel. As the world is running out of fossil fuels and the wide-spread acceptance of climate change due to carbon emissions, both the governments and industry are spending a significant amount of resources on research to reduce the weight and hence the fuel consumption of commercial aircraft. A commercial fixed-wing aircraft wing consists of spars which are beams running in span-wise direction, carrying the flight loads and ribs which are panels with holes attached to the spars to preserv

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7

Islam, Mohammad Majharul. "Global-local Finite Element Fracture Analysis of Curvilinearly Stiffened Panels and Adhesive Joints." Diss., Virginia Tech, 2012. http://hdl.handle.net/10919/38687.

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Global-local finite element analyses were used to study the damage tolerance of curvilinearly stiffened panels; fabricated using the modern additive manufacturing process, the so-called unitized structures, and that of adhesive joints. A damage tolerance study of the unitized structures requires cracks to be defined in the vicinity of the critical stress zone. With the damage tolerance study of unitized structures as the focus, responses of curvilinearly stiffened panels to the combined shear and compression loadings were studied for different stiffenersâ height. It was observed that the mag

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8

Viquerat, Jonathan. "Simulation de la propagation d'ondes électromagnétiques en nano-optique par une méthode Galerkine discontinue d'ordre élevé." Thesis, Nice, 2015. http://www.theses.fr/2015NICE4109/document.

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L’objectif de cette thèse est de développer une méthode Galerkine discontinue d’ordre élevé capable de prendre en considération des simulations réalistes liées à la nanophotonique. Au cours des dernières décennies, l’évolution des techniques de lithographie a permis la création de structure géométriques de tailles nanométriques, révélant ainsi une large gamme de phénomènes nouveaux nés de l’interaction lumière-matière à ces échelles. Ces effets apparaissent généralement pour des objets de taille égale ou (très) inférieure à la longueur d’onde du champ incident. Ce travail repose sur le dévelop

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9

Prabhakar, Suhas. "A methodology for finite element analysis of curvilinear fiber laminates with defects, fabricated by automated fiber placement technique." Thesis, McGill University, 2012. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=107876.

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Composite materials have immense capabilities in terms of tailorability and studying in-depth the Automated Fiber Placement (AFP) technique can go a long way in achieving the above goal. Composite laminates fabricated by AFP can also induce defects such as gaps and overlaps. These defects mainly arise in laminates with curvilinear fiber paths. Gaps usually get filled with resin post-curing while the overlaps are thickness build-ups. This makes it important to analyse the effect of these defects and to incorporate these effects while designing and modeling composite laminates. The present work

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10

Kramer, Stephan Christoph. "CUDA-based Scientific Computing." Doctoral thesis, Niedersächsische Staats- und Universitätsbibliothek Göttingen, 2012. http://hdl.handle.net/11858/00-1735-0000-000D-FB52-0.

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11

Yeilaghi, Tamijani Ali. "Vibration and Buckling Analysis of Unitized Structure Using Meshfree Method and Kriging Model." Diss., Virginia Tech, 2011. http://hdl.handle.net/10919/37817.

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The Element Free Galerkin (EFG) method, which is based on the Moving Least Squares (MLS) approximation, is developed here for vibration, buckling and static analysis of homogenous and FGM plate with curvilinear stiffeners. Numerical results for different stiffeners configurations and boundary conditions are presented. All results are verified using the commercial finite element software ANSYSÂ® and other available results in literature. In addition, the vibration analysis of plates with curvilinear stiffeners is carried out using Ritz method. A 24 by 28 in. curvilinear stiffened panel was mac

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12

Lee, Chin-fa, and 李進發. "finite element method with curvilinear hybrid edge/nodal triangular-shape elements for optical waveguide problems." Thesis, 2002. http://ndltd.ncl.edu.tw/handle/16048771427670601123.

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碩士<br>國立臺灣大學<br>電信工程學研究所<br>90<br>In this research approach using curvilinear hybrid edge/nodal elements with triangular shape is described for the study of guided-wave problems. The advantage of curvilinear elements lies in the fact that they can model curved boundaries with more accuracy and lesser number of degrees of freedom than rectilinear elements. The method is formulated in terms of linear edge elements for transverse components of the electric or magnetic field and quadratic nodal elements for the axial component for structures having diagonal permittivity and permeability

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13

Hsu, Sen-Ming. "Full-Vectorial Finite Element Beam Propagation Method Based on Curvilinear Hybrid Edge/Nodal Elements for Optical Waveguide Problems." 2004. http://www.cetd.com.tw/ec/thesisdetail.aspx?etdun=U0001-0807200418282600.

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14

Hsu, Sen-Ming, and 許森明. "Full-Vectorial Finite Element Beam Propagation Method Based on Curvilinear Hybrid Edge/Nodal Elements for Optical Waveguide Problems." Thesis, 2004. http://ndltd.ncl.edu.tw/handle/69371658699655182573.

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碩士<br>國立臺灣大學<br>電信工程學研究所<br>92<br>A full-vectorial finite element beam propagation method based on curvilinear hybrid edge/nodal elements is adopted in this thesis for studying optical waveguide problems. Several difficulties of the finite element method eigenmode solver based on the (modified) shift inverse power method are overcome in this work by taking advantages of the characteristics of the beam propagation method. By analyzing the elliptical-core fibers, we find that the procedure for finding higher order modes using the beam propagation method is straightforward, while that of the eige

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15

Li, Zhi-uei, and 李致緯. "Finite Element Stress Analysis of a Circular-Arc Curvilinear-Tooth Gear Set Generated by Complementary Circular-Arc Disk-Type Cutters." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/65038940047077374118.

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碩士<br>國立中央大學<br>機械工程研究所<br>100<br>This paper focuses on finite element stress analysis of a complementary circular-arc curvilinear gear set. Firstly, the mathematical model of the complementary circular-arc curvilinear gear set was developed based on the theory of gearing. Tooth contact analysis (TCA) is performed to study the influences of gear design parameters and assembly errors on the transmission error. The original complementary circular-arc curvilinear gear is in line-contact and is sensitive to assembly errors. A commercial finite element analysis (FEA) package, ABAQUS, was utilized t

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