Comparisons of piecewise Ritz and weighted-residual methods

dc.contributor.advisorBannerot, Richard B.
dc.contributor.committeeMemberDalton, Charles
dc.contributor.committeeMemberKay, Franklin J.
dc.contributor.committeeMemberFlumerfelt, Raymond W.
dc.creatorAlvarez, Oscar E.
dc.description.abstractTo date, finite element techniques using the Ritz Method have found wide use in solving differential equations in the applied sciences, particularly in structural analysis. Finite Element Techniques using weighted-residual methods, however, have not been tried. This thesis develops Finite Element Techniques using the Collocation, Subdomain, Galerkin, and Least-Squares weighted-residual methods, and compares them to the Ritz Method. Numerical results are presented for a one-dimensional problem using all weighted-residual methods and the Ritz Method. From a standpoint of accuracy and ease of formulation and programming, the Subdomain Method compared favorably with the Ritz Method. The solution of a two-dimensional problem was attempted. The weighted-residual techniques led to a singular matrix. This was due, probably, to the poor choice of an approximation family.
dc.description.departmentMechanical Engineering, Department of
dc.format.digitalOriginreformatted digital
dc.rightsThis item is protected by copyright but is made available here under a claim of fair use (17 U.S.C. Section 107) for non-profit research and educational purposes. Users of this work assume the responsibility for determining copyright status prior to reusing, publishing, or reproducing this item for purposes other than what is allowed by fair use or other copyright exemptions. Any reuse of this item in excess of fair use or other copyright exemptions requires express permission of the copyright holder.
dc.titleComparisons of piecewise Ritz and weighted-residual methods
dc.type.genreThesis of Engineering Engineering, Department of Engineering of Houston of Science


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