Ultrasonic infrared thermal wave nondestructive evaluation for crack detection of several aerospace materials

Weichao Xu; Jingling Shen; Cunlin Zhang; Ning Tao; Lichun Feng

doi:10.1117/12.757015

8 January 2008 Ultrasonic infrared thermal wave nondestructive evaluation for crack detection of several aerospace materials

Weichao Xu, Jingling Shen, Cunlin Zhang, Ning Tao, Lichun Feng

Author Affiliations +

Proceedings Volume 6835, Infrared Materials, Devices, and Applications; 68350V (2008) https://doi.org/10.1117/12.757015
Event: Photonics Asia 2007, 2007, Beijing, China

Abstract

The applications of ultrasonic infrared thermal wave nondestructive evaluation for crack detection of several materials, which often used in aviation alloy. For instance, steel and carbon fiber. It is difficult to test cracks interfacial or vertical with structure's surface by the traditional nondestructive testing methods. Ultrasonic infrared thermal wave nondestructive testing technology uses high-power and low-frequency ultrasonic as heat source to excite the sample and an infrared video camera as a detector to detect the surface temperature. The ultrasonic emitter launch pulses of ultrasonic into the skin of the sample, which causes the crack interfaces to rub and dissipate energy as heat, and then caused local increase in temperature at one of the specimen surfaces. The infrared camera images the returning thermal wave reflections from subsurface cracks. A computer collects and processes the thermal images according to different properties of samples to get the satisfied effect. In this paper, a steel plate with fatigue crack we designed and a juncture of carbon fiber composite that has been used in a space probe were tested and get satisfying results. The ultrasonic infrared thermal wave nondestructive detection is fast, sensitive for cracks, especially cracks that vertical with structure's surface. It is significative for nondestructive testing in manufacture produce and application of aviation, cosmography and optoelectronics.

Citation Download Citation

Weichao Xu, Jingling Shen, Cunlin Zhang, Ning Tao, and Lichun Feng "Ultrasonic infrared thermal wave nondestructive evaluation for crack detection of several aerospace materials", Proc. SPIE 6835, Infrared Materials, Devices, and Applications, 68350V (8 January 2008); https://doi.org/10.1117/12.757015

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available