Title :
Experimental studies of crack sizing and location based on ultrasonic nondestructive testing
Author :
Zhang, Yonghong ; Zhu, Honglian ; Zuo, Ming J.
Author_Institution :
Sch. of Inf. & Control Eng., Nanjing Univ. of Inf. Sci. & Technol., Nanjing, China
Abstract :
Nondestructive evaluation using ultrasonic waves for crack identification is an important technique in failure prevention of materials and structures. This paper provides an experimental study of the effect of crack surface contact on the collected ultrasonic signal. Ultrasonic shear wave was generated in the specimens and reflection from the crack was measured to estimate the crack size and location. Measurement accuracy of these collection data files were analyzed and improved using the proposed graphical solutions.
Keywords :
acoustic signal processing; cracks; elastic waves; maintenance engineering; ultrasonic materials testing; crack identification; crack location; crack sizing; materials prevention; nondestructive evaluation; ultrasonic nondestructive testing; ultrasonic shear wave; ultrasonic signal processing; ultrasonic waves; Data analysis; Fatigue; Frequency; Manufacturing; Nondestructive testing; Optical reflection; Surface cracks; Surface discharges; Ultrasonic transducers; Ultrasonic variables measurement;
Conference_Titel :
Robotics and Biomimetics (ROBIO), 2009 IEEE International Conference on
Conference_Location :
Guilin
Print_ISBN :
978-1-4244-4774-9
Electronic_ISBN :
978-1-4244-4775-6
DOI :
10.1109/ROBIO.2009.5420826
