Premium
A finite element procedure for calculation of strain from interpolated displacements
Author(s) -
Carr James R.
Publication year - 1992
Publication title -
international journal for numerical and analytical methods in geomechanics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.419
H-Index - 91
eISSN - 1096-9853
pISSN - 0363-9061
DOI - 10.1002/nag.1610160304
Subject(s) - interpolation (computer graphics) , finite element method , mathematics , kriging , sampling (signal processing) , mixed finite element method , field (mathematics) , geometry , mathematical analysis , structural engineering , computer science , engineering , statistics , filter (signal processing) , pure mathematics , computer vision , animation , computer graphics (images)
Second‐order universal kriging is proposed as an accurate model for interpolating displacements measured in the field to nodal points of a superimposed finite element mesh. These interpolated displacements are used in a modified finite element procedure to calculate strain. This model is compared to a local trend model to judge superiority. Interpolation models are tested by randomly sampling displacements obtained in a finite element analysis, then applying interpolation in attempts to reconstruct the original results.