Abstract
The results of fatigue test and fatigue life predictions of CFRP T300/5208 [45/0/-45/90]2s specimens with open holes under loading of quasi-random “TWIST” program with different levels of truncation of large and small loads were considered. It was noted that the fatigue life predictions made using the Palmgren-Miner rule showed an unacceptable accuracy of the results. In order to increase the accuracy of such predictions, two new prediction methods are proposed, formed by using two different non-liner fatigue damage accumulation models. Results of fatigue life predictions for considered specimens with use of new methods are presented. The results of the predictions are compared with the experimental data. Conclusions are made about the accuracy of predictions using the proposed methods.
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