A COMPARISON OF THE BOUNDARY INTEGRAL EQUATION AND FINITE ELEMENT METHODS IN TWO-DIMENSIONAL ELASTOSTATICS

Authors
  1. Vernon, T.A.
Corporate Authors
Defence Research Establishment Atlantic, Dartmouth NS (CAN)
Abstract
A preliminary investigation of the boundry integral equation method applied to two-dimensional elastostatics problems is presented. Comparisons based on accuracy, input data preparation time and CPU solution time requirements are made between the boundary integral method as embodied in the program BIE2DB1, and the finite element program VAST2 for a number of commonly encountered engineering problems. The examples discussed are a constant stress test, a uniformly loaded cantilever beam, the stress concentration at a hole in a flat plate in tension, and the calculation of an edge crack stress intensity factor. The results indicate that the boundary integral method is consistently less demanding in both CPU time and data preparation time for a given level of accuracy for the examples studied.
Report Number
DREA-TM-87-212 — Technical Memorandum
Date of publication
15 Jun 1987
Number of Pages
30
DSTKIM No
88-00098
CANDIS No
53343
Format(s):
Hardcopy;Originator's fiche received by DSIS

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