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Prediction and minimization of computed error in elastic stress analysis due to random measurement errors on the boundary

Author(s): D. Nale, D.L. Karabalis, J.R. Dickerson & M. Suitor Abstract: This paper proposes a "constrained least squares approach" for correlating analytical and experimental data within the framework of a hybrid technique while simultaneously accounting for errors present in the boundary measurements. The boundary element "analytical" method is utilized to determine the stresses and displacements on the boundary of an elastic body having random experimental errors in the boundary data. It is illustrated that if the boundary data with random errors are (i) combined with a least squares approach for the minimization of the effects of the measurement error and (ii) constrained so that certain analytical requirements are imposed upon the solution, the resu... Pages: 7 Size: 736 kb Paper DOI: 10.2495/BT960251

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Download the Full Article This article is part of the WIT OpenView scheme and you can download the full text Adobe PDF article for FREE by clicking the 'Openview' icon to the right.