Accession Number : ADA248582
Title : Research and Development of the p-version of the Finite Element Model.
Descriptive Note : Final technical rept. 1 Oct 87-31 Oct 91,
Corporate Author : WASHINGTON UNIV ST LOUIS MO DEPT OF SYSTEMS SCIENCE AND MATHEMATICS
Personal Author(s) : Katz, I. N. ; Szabo, Barna A. ; Greensfelder, A. P.
Report Date : 24 FEB 1992
Pagination or Media Count : 42
Abstract : A new iteration, based on a textured model decomposition, is used to solve the assembled system of equations in the p-version of the finite element method for two-dimensional problems. Based on the hierarchic property of shape functions on a rectangle, a superelement consisting of four adjacent rectangles is constructed, and then partitioned into three blocks. The iteration is used to implement the p-version in parallel on an N-cube. Load balance and speed-up ratios are investigated. A new approach for analyzing fastened structural connections based on the p-version is studied. This approach takes nonlinearities into account. Model predictions are found to be in good agreement with experimental results reported.
Descriptors : *FINITE ELEMENT ANALYSIS, *PROBLEM SOLVING, *TWO DIMENSIONAL, AGREEMENTS, APPROACH, BALANCE, DECOMPOSITION, EQUATIONS, FUNCTIONS, ITERATIONS, MODELS, PREDICTIONS, RATIOS, SHAPE, VELOCITY, NONLINEAR ANALYSIS, EXPERIMENTAL DATA.
Subject Categories : Numerical Mathematics
Distribution Statement : APPROVED FOR PUBLIC RELEASE