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The Development of a Hybrid Technique Employing the Boundary Element Method for Thermoelastic Stress Separation
Author(s) -
Barone S.,
Pitarresi G.
Publication year - 2000
Publication title -
strain
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.477
H-Index - 47
eISSN - 1475-1305
pISSN - 0039-2103
DOI - 10.1111/j.1475-1305.2000.tb01203.x
Subject(s) - thermoelastic damping , stress (linguistics) , boundary (topology) , boundary element method , finite element method , boundary value problem , smoothing , structural engineering , mathematical analysis , mathematics , engineering , thermal , physics , thermodynamics , linguistics , philosophy , statistics
This paper presents a development of a hybrid technique employing a boundary element method for determining individual stress components in two‐dimensional arbitrarily shaped domains from experimental isopachics only. The procedure consists of a numerical solution of two Poisson equations representing equilibrium for two‐dimensional plane‐stressed solids with zero body forces. An existing technique is employed for smoothing interior thermoelastic data and enhancing boundary information. The algorithm of stress separation has been implemented with the help of commercial codes. The whole procedure has been tested through a complete post‐processing example of thermoelastic stress analysis data.