%0 Journal Article
%T New numerical method for the photoelastic technique
%A M. J¨²nior
%A Pedro Am¨¦rico A.
%A Magalh£¿es
%A Cristina Almeida
%A Smith Neto
%A Perrin
%J Journal of the Brazilian Society of Mechanical Sciences and Engineering
%D 2012
%I Scientific Electronic Library Online
%R 10.1590/S1678-58782012000400015
%X the objective of this research is to find new equations for a novel phase-shifting method in digital photoelasticity. some innovations are proposed. in terms of phase-shifting, only the analyzer is rotated, and the other equations are deduced by applying a new numerical technique instead of the usual algebraic techniques. this approach can be used to calculate a larger sequence of images. each image represents a measurement of the stresses present in the object. every photographic image has errors and random noise, but the uncertainties due to these effects can be reduced with a larger number of observations.
%K photoelasticity
%K metrology
%K stress analysis
%K optical measurement.
%U http://www.scielo.br/scielo.php?script=sci_abstract&pid=S1678-58782012000400015&lng=en&nrm=iso&tlng=en