Real-Time Impact Monitoring of Composites for Ship Applications

Abstract:

Composites are getting more and more attention in the usage of major structures on ships owing to many advantages such as high specific strength and rigidity. However, composites are sensitive to impact, which indicates that the load-carrying capacity and stability of composite structures will decrease dramatically even for an invisible impact damage. Hence, a real-time impact monitoring system which has already been applied in aviation industry is important for reliability of ships, which inevitably encounter impacts during their lifetime due to different sources. This paper deals with the realization of an operational processing scheme to monitor the impact on composite structures, and estimate the impact location and load history by power distribution approach and system identification method. A PZT (piezoelectric lead zirconate titanate) sensor network was designed and employed to collect sensing signals for monitoring the impact. In the monitoring process, stress wave signals caused by impact were captured, and used to determine the impacted location and load history. Results demonstrate that the proposed method can be successfully applied in identifying the location and load history of impact on composite structures. The impact identification approach is of great significance for marine applications.

• Periodical: Materials Science Forum (Volume 813)
• Pages: 72-77
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.813.72
• Online since: March 2015
• Authors: Ming Yu Lu*, Hai Nan Yang, Xin Lin Qing, Zhong Qing Su, Li Min Zhou
• Keywords: Composite, Impact, Monitoring, Ship

References

[1] G. Bartelds, Aircraft structural health monitoring, prospects for smart solutions from a European viewpoint Structural Health Monitoring. Current Status and Perspectives, Proc. Int. Workshop on Structural Health Monitoring, 1997, pp.293-300.

DOI: 10.1177/1045389x9800901106

[2] A. G. Miller, D. T. Lovell, and J. C. Seferis, The evolution of an aerospace material: Influence of design, manufacturing and in-service performance, Composite Structures, 27(1994)193-206.

DOI: 10.1016/0263-8223(94)90080-9

[3] J. F. Doyle, Experimentally determining the contact force during the transverse impact of an orthotropic plate, Journal of Sound and Vibration, 118(1987)441-448.

DOI: 10.1016/0022-460x(87)90363-4

[4] E. Wu, J. C. Yeh, and C. S. Yen, Identification of impact forces at multiple locations laminated plates, Journal of AIAA, 32(1994)2433-2439.

DOI: 10.2514/3.12310

[5] R. Seydel, and F. K. Chang, Impact identification of stiffened composite panels: I. system development, Smart Mater. Struct., 10(2001)354-369.

DOI: 10.1088/0964-1726/10/2/323

[6] F. Akhavan, S. E. Watkins, and K. Chandrashekara, Recovery of impact contact forces of composite plates using fiver optical sensors and neural networks, SPIE Proceedings, 2839(1996)277-288.

[7] R. T. Jones, J. S. Sirkis, and E. J. Friebele, Detection of impact location and magnitude for isotropic plates using neural networks, Journal of Intelligent Material Systems and Structures, 7(1997)90-99.

DOI: 10.1177/1045389x9700800109

[8] K. Worden, and W. J. Staszewski, Impact location and quantification on a composite panel using neural networks and a genetic algorithm, Strain, 36(2000)61-70.

DOI: 10.1111/j.1475-1305.2000.tb01175.x

[9] J. Park, S. Ha, and F. K. Chang, Monitoring impact events using a system-identification method, American Institue of Aeronantics and Astronantics Journal, 47(9): 2009, p.2011-(2021).

[10] J. Park, and F. K. Chang, System identification method for monitoring impact events. Proceedings of SPIE, Smart Structures and Materials: Smart Sensor Technology and Measurement Systems, San Diego, CA, (2005).

DOI: 10.1117/12.599139

[11] L. T. Xu, Z. J. Wu, Y. S. Wang, and S. Y. Ma, Key techniques of impact identification for stiffener reinforced composite structures, Science & Technology Review, 31(7), 2013, pp.42-45. (in Chinese).

[12] T. F. Mu, L. Zhou, and L. H. Zhao, Impact loading time history reconstruction of stiffened composite panels using ARX model, Journal of Vibration Engineering, 26(1) 2013, pp.25-31. (in Chinese).