In this paper, data on time dependent behavior of bolted joints made from 64 ply IM7 carbon fiber / K3B thermoplastic polyimide quasi-isotropic layup tested in pure bolt bearning is presented. Composite panels were aged at temperatures of 177 deg C (350 deg F) and 204 deg C (400 deg F) for 5000 hours to simulate cumulative effects of supersonic flight conditions on a bolted composite joint. Change in joint bearing capacity, determination of time dependent behavior, and exploration of accelerated testing methods for evaluating bolt bearning performance of future materials have been covered in this study. For testing, coupons sized and drilled to correspond to the ratios found in actual joints were loaded to a wide range of loads both with the without clamp-up forces. Testing was done at a temperature of 177 deg C (350 deg F), to simulate supersonic cruise temperature. Bearing creep testing revealed time dependent behaviro only in a very narrow loading region, above which bearning failure occured almost instantaneously, and below which no damage occured. Testing of aged material has shown degradation in material aged at 177 deg C (350 deg F), however, comparison with material aged at 204 deg C (400 deg F) showed neither equivalent nor increased performance degradation.
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