Abstract
In order to investigate the bending fatigue of two-dimensional(2D) plain woven SiCf/SiC composites upto relatively high-cycle regime, experimental set-up and testing procedure were detailedly designed. The in-situ natural frequency variation and in-situ damage images evolution during the experiment were obtained. Afterwards, multiscale fatigue simulation framework was developed on the basis of General Method of Cells(GMC) and cycle jump technique. The simulated damage evolution is in good agreement with the observed images. In the end, the comparison between predicted and experimental fatigue life demonstrates a scatter band of ±2.36, proving that the developed framework possesses good capability for life prediction.
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