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