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Effect of Post-Cure Time on Residual Stress Distribution in Carbon/Epoxy Laminated Composites

Journal: International Journal of Advanced Design and Manufacturing Technology (Vol.5, No. 4)

Publication Date:

Authors : ;

Page : 13-18

Keywords : Carbon/Epoxy Composites; Post-Cure Time; Residual Stress; Slitting Method;

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Abstract

This research investigates the effect of post-cure time on residual stresses in laminated composites. Laminated composites were made of T300 carbon fibers and epoxy resin. The post-cure process was carried out at the constant temperature of 120 °C for 6 and 12 hours for two specimens. The slitting method was employed to determine through-thickness residual stress distribution of the composite laminates. The results of experiment indicates that increasing the post-cure time leads to the reduction of maximum residual stress, as well as the uniformity of the residual stress distribution in laminated composites. Therefore, increasing the post-cure time is an effective way of reducing the destructive effects of residual stresses in laminated composites.

Last modified: 2013-03-09 17:27:02