STRESS ANALYSIS BY FINITE ELEMENTS
THE METHOD OF FINITE ELEMENTS IS OUTLINED FOR DETERMINATION OF STRESS AND DISPLACEMENT FIELDS. THE CHIEF FEATURES ARE ILLUSTRATED AND ADVANTAGES OF THE TECHNIQUE ARE ILLUSTRATED BY SEVERAL EXAMPLES. THE THEORY IS PRESENTED OF THE FINITE ELEMENTS METHOD. THIS METHOD IS NOT AS WIDELY APPLICABLE AS FINITE DIFFERENCES, BECAUSE ONLY THOSE PROBLEMS WHICH HAVE AN EQUIVALENT VARIATIONAL FORMULATION MAY BE ATTACKED BY FINITE ELEMENTS. ONE DISADVANTAGE IS THAT STRESSES ARE AVERAGED ACROSS ANY ONE ELEMENT. IT IS NEVER CLEAR WHAT POINT IN THE TRIANGULAR ELEMENT CORRESPONDS TO THE AVERAGE STRESS STATE. ALL PROBLEMS WERE RUN ON AN IBM 7094 DIGITAL COMPUTER. IT IS ANTICIPATED THAT THE METHOD OF FINITE ELEMENTS WILL BECOME A STANDARD TOOL FOR ELASTIC ANALYSIS WITHIN THE NEXT FEW YEARS.
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Supplemental Notes:
- Paper sponsored by Committee on Mechanics of Earth Masses and Layered Systems. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved
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Authors:
- Westmann, R A
- Publication Date: 1968
Media Info
- Media Type: Print
- Features: Figures; References;
- Pagination: pp 46-58
- Monograph Title: Soil stresses and pavement element analysis (5 reports)
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Serial:
- Highway Research Record
- Issue Number: 228
- Publisher: Highway Research Board
Subject/Index Terms
- TRT Terms: Digital computers; Dislocation (Geology); Elastic analysis; Finite element method; Structural analysis; Theory
- Old TRIS Terms: Average stress method; Elastic analysis (Structural); Finite elements
- Subject Areas: Geotechnology; Highways; Pavements;
Filing Info
- Accession Number: 00205706
- Record Type: Publication
- Files: TRIS, TRB
- Created Date: Sep 16 1994 12:00AM