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Using the photoelastic technique for the measurement of residual stresses in rods and tubes of transparent polymers, the effect of some processing parameters such as the initial and final temperatures of quenching, type of cooling medium and the tube wall thickness is examined. These parameters have been shown to influence the magnitude and distribution of residual stresses. Also, a simplified version of the technique has been suggested to assess the magnitude of stresses in such tubes during fabrication itself. This simplified version yields necessary information about the stresses within an accuracy of approximately ± 10%.

Effect of Various Parameters on Residual Stresses in Transparent Polymeric Tubes