PSI - Issue 17

Guillermo Azuara et al. / Procedia Structural Integrity 17 (2019) 774–779 Author name / Structural Integrity Procedia 00 (2019) 000 – 000

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5. Conclusions

The presence of small size damages in composite materials can cause their masking when a damage location prediction is carried out. The proposed modification of the RAPID algorithm allows avoiding masking when the results are not enough to get an accurate analysis. The prediction of the location is sensibly better at both excitation frequency values using the modification, approaching the value of the prediction to less than 2 centimeters. The utilization of this methodology was tested in small size thermoplastic composite, so the future steps are to test it on bigger specimens and, in addition, in more complex shape geometries. The research leading to these results has gratefully received funding from the European JTI-CleanSky2 program under the Grant Agreement n◦ 314768 (SHERLOC). The Regional Ministry of Education, Youth and Sports of the Community of Madrid and the European Social Fund have partially funded the Ph.D. of the first author under the reference PEJD-2016/TIC-3271. The authors would also like to thank the SHM team at Imperial College, Dep. of Aeronautics, for their valuable support, and FIDAMC for providing the thermoplastic material. Balageas, D., Fritzen, C. P., & Güemes, A. (Eds.). (2010). Structural health monitoring (Vol. 90). John Wiley & Sons. Giurgiutiu, V. (2003, August). Lamb wave generation with piezoelectric wafer active sensors for structural health monitoring. In Smart Structures and Materials 2003: Smart Structures and Integrated Systems (Vol. 5056, pp. 111-123). International Society for Optics and Photonics. Deep Burn Project: Annual Report for 2009, Idaho National Laboratory, Sept. 2009. Aranguren, G., Monje, P. M., Cokonaj, V., Barrera, E., & Ruiz, M. (2013). Ultrasonic wave - based structural health monitoring embedded instrument. Review of Scientific Instruments, 84(12), 125106. Lamb, Horace. On waves in an elastic plate. 93. Proceedings of the Royal Society of London. Series A, Containing Papers of a Mathematical and Physical Character, 1917. Acknowledgments References