Abstract
There are several practical methods in use today for conducting a residual stress analysis. The principal advantage of the full-field photoelastic coating technique is that any residual stress present in a part is revealed everywhere it occurs over the part's surface after sectioning. This article provides a general introduction to photoelastic analysis, and then describes the photoelastic coating technique in particular, and how it is used for the detection and measurement of residual strain. Case history applications are presented on a metal fan hub, and an injection molded washroom sink.
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