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This command allows the user to perform a results extrapolation on gaussian or invariant result data sets. It is done on an element by element basis. If results within an element are invariant, an invariant extrapolation is used. If the results distribution is linear, a linear extrapolation is used. If the results are not invariant, and are not linear, a quadratic extrapolation will be used. Extrapolation is carried out on all components of the selected attribute.
The resulting data is stored as a new element nodal result data set. This new data set takes the name of the current attribute (the result selected for extrapolation), unless this attribute name already exists for element results, in which case the user is then prompted for a new attribute name.
For example with an ABAQUS analysis if the user has not requested the output of the Gauss Points coordinates, the gaussian results will still be transferred by the post-processor postabaqus but with zero values for the Gauss Points coordinates.