Simulation of Ultrasonic Detection of Natural Defects in Weld with Finite Element Analysis

Abstract:

With the continuous development of the ultrasonic detection technology, ultrasonic time of flight diffraction (TOFD) method has been widely applied. The paper investigated the TOFD technique in the detection of natural defects. TOFD detection experiment is established in Lab. The finite element analysis simulation of A-scan signal and ultrasonic TOFD technique in the detection of the longitudinal arrangement of pores defects within the weld specimen transmission are studied. The feasibility and correctness of the finite element analysis model are verified by comparing the experimental signals with the simulation signals.

• Periodical: Applied Mechanics and Materials (Volumes 602-605)
• Pages: 1590-1593
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.602-605.1590
• Online since: August 2014
• Authors: Han Xin Chen*, Shi Qi Yang
• Keywords: Finite Element (FE) Simulation, Natural Defects, Time-Of-Flight Diffraction (TOFD), Weld Ultrasonic Detection

References

[1] Wang Wenxian, Wang Dongpo, Qi Fangjuan. Welded structures. Beijing: Chemical Industry Press, (2012).

[2] Zhang Wanling Qi Yonggang, Yan Yu. Ultrasonic Testing for Butt Weld of Pressure Vessels. Coal Mine Machinery, (2013).

[3] British Standard BS7706, Guide to Calibration and setting up of the ultrasonic time of TOFD technique, British Standards Institution, (1993).

[4] Hanxin Chen, Kui Sun，Chanli Ke, Yunfei Shang. Simulation of ultrasonic testing technique by Finite Element Method. Prognostics and System Health Management (PHM), 2012 IEEE Conference, Page(s): 1-5, 10. 1109/PHM. 2012. 6228959.

DOI: 10.1109/phm.2012.6228959

[5] Wei Dong, Zhou Zhengwu. Finite difference simulation of pulsed ultrasonic wave propagation in solids [J]. Aeronautics (2010), 2: 388.