3-D Imaging Based Ultrasonic Phased Array Theory for Composite Structure Damage Identification

Abstract:

The Lamb wave phased array theory is utilized to analysis the damage scattered signals to identify the structure defect. The damage scattered signals are gotten by comparing the health signals with the damage signals. Phased array theory based structural health monitoring can scan the structure in a certain range of 0°~180° by controlling the time delay of the excitation signals and the response signals. The processed signals in monitoring direction is shown on 3-D imaging to express the damage location in the structure. The method is verified by the experiment on the composite structure and the result shows that the Lamb wave phased array method can detect the damage in the composite structure and the 3-D image clearly displays the structure damage location.

• Periodical: Applied Mechanics and Materials (Volume 389)
• Pages: 881-886
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.389.881
• Online since: August 2013
• Authors: Ya Jie Sun, Yong Hong Zhang, Cheng Shan Qian, Zi Jia Zhang, Qi Wang
• Keywords: 3-D Imaging, Composite Structure, Lamb Wave, Phased Array

References

[1] Fromme P. Structural Health Monitoring of Plates with Surface Features using Guided Ultrasonic Waves. Proc. of SPIE 2009, 7295(729517): 1-8.

DOI: 10.1117/12.815530

[2] Diamanti K., Soutis C., Hodgkinson J. M. Non-destructive Inspection of Sandwich and Repaired Composite Laminated Structures. Composites Science and Technology, 2005, 65: 2059-(2067).

DOI: 10.1016/j.compscitech.2005.04.010

[3] SUN Y. J., YUAN S. F., WANG B. F. Research on Two- dimensional Damage Localization in Composition Material Based on HHT Technique. Piezoelectrics & Acoustoopitics, 2007, 29(6): 736-739. (In chinese).

[4] Peng G., Yuan S. Damage Localization on Two–Dimensional Structure Based on Wavelet Transform and Active Lamb Wave–Based Method. Materials Science Forum, 2005, 475. 479: 2119-212.

DOI: 10.4028/www.scientific.net/msf.475-479.2119

[5] Yu L., Giurgiutiu V. Design, Implementation, and Comparison of Guided Wave Phased Arrays Using Embedded Piezoelectric Wafer Active Sensors for Structural Health Monitoring. Processing of SPIE, 2006, 6173(61731M): 1-12.

DOI: 10.1117/12.658649

[6] Purekar A.S., Pines D. J. Damage Detection in Thin Composite Laminates Using Piezoelectric Phased Sensor Arrays and Guided Lamb Wave Interrogation. Journal of Intelligent Material Systems and Structures, 2010, 21(10): 995-1010.

DOI: 10.1177/1045389x10372003