3 Failure Behaviour of Composites Under Both Vibration Loading and Environmental Conditions 31 Fig. 3.7 Simulated phase evolution at different amplitudes (m) Fig. 3.8 Simulated phase evolution at different ambient temperature levels (at 2 ×10−3 m) Furthermore, the simulated data were verified against the experimental results, confirming once again how important the use of a numerical aid. It will be essential to understanding what parameters should be integrated to perform a comprehensive model validation. Furthermore, interrupted HCF tests were executed and the samples analysed by CT scans. The NDT measurements confirmed that delamination opens before becoming critical as the model simulated it. Finally, the fusion of test and analysis is seen as fundamental to navigate towards the best understanding possible. Acknowledgements The authors would like to acknowledge the support of Rolls-Royce plc for this research through the Composites University Technology Centre (UTC) at the University of Bristol, UK. References 1. Coronado, P., Argüelles, A., Viña, J., Mollón, V., Viña, I.: Influence of temperature on a carbon-fibre epoxy composite subjected to static and fatigue loading under mode-I delamination. Int. J. Solids Struct. 49, 2934–2940 (2012) 2. Sjögren, A., Asp, L.E.: Effects of temperature on delamination growth in a carbon/epoxy composite under fatigue loading. Int. J. Fatigue. 24, 179–184 (2002)
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