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The application of the boundary-integral equation method to the solution of engineering stress analysis and fracture mechanics problems
A boundary-intergral equation (BIE) method, as employed by a computer program called PESTIE (plane elastic solution technique of integral equations), is described for application to engineering stress and fracture mechanics problems of interest to the electric power generating industry. The paper de...
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Published in: | Nuclear engineering and design 1977-01, Vol.43 (1), p.161-173 |
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Main Author: | |
Format: | Article |
Language: | English |
Citations: | Items that this one cites Items that cite this one |
Online Access: | Get full text |
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Summary: | A boundary-intergral equation (BIE) method, as employed by a computer program called PESTIE (plane elastic solution technique of integral equations), is described for application to engineering stress and fracture mechanics problems of interest to the electric power generating industry. The paper describes a unique combination of several numerical analysis capabilities and user-oriented features that produce significant advantages over finite element programs and earlier BIE programs. These advantages are demonstrated by comparing numerical results and performance of PESTIE with those of other programs for a series of stress concentration and stress intensity factor problems. The examples include the effect of closely spaced notches (e.g. as encountered in the rim area of a turbine rotor spindle), and the stress intensity factor of a shallow wide crack (e.g. a longitudinal crack in a large diameter pipe). |
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ISSN: | 0029-5493 1872-759X |
DOI: | 10.1016/0029-5493(77)90137-6 |