Title: INFLUENCE OF HUMID AGEING ON THE PERFORMANCE OF EPOXY RESIN/CARBON FIBER COMPOSITES
Authors: Hasan HIZLI
Abstract: Many environmental factors affect physical and mechanical properties of composite materials resulting in an undesirable degradation. In this study, the impact of high temperature humidity exposure (65 oC, 95% relative humidity) on the structural performance of epoxy resin/carbon fiber composite rocket motor cases were investigated experimentally. Samples were placed in the high temperature humidity chamber for 500, 1000 and 1500 hours. Thereafter, the samples were subjected to hydrostatic burst test in order to identify the burst pressure and burst mode. Results show that the high temperature humidity exposure time has affected the burst pressure values of the samples. Burst pressure value of the samples decreased approximately 5% after exposed to the high temperature humidity for 1000 hours and changed negligibly after that. Burst mode, on the other hand, was observed to be insensitive to this exposure. The acquired information is intended to be useful in on-going and future programs to prevent or otherwise mitigate significant structural failure possibilities that may arise.
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Conference: SAMPE 2023
Publication Date: 2023/04/17
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