Experimental Mechanics @ Michigan State University
		EM Basics: 2D Photoelasticity
Photoelastic pattern for a model of a crane-hook
When analysing components which are essentially two-dimensional it is possible to make a model from a flat transparent plate. The model is then loaded at room temperature in a polariscope. When the model is unloaded the photoelastic fringe pattern will disappear. The major advantages of this procedure is its simplicity and the ability to modify the model to produce an optimised design with the lowest possible maximum stress.
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