Crack detection using sonic infrared imaging in steel structures: experiments and theory of heating patterns

Qi He; Xiaoyan Han

doi:10.1117/12.819200

30 March 2009 Crack detection using sonic infrared imaging in steel structures: experiments and theory of heating patterns

Qi He, Xiaoyan Han

Author Affiliations +

Proceedings Volume 7292, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2009; 72920Q (2009) https://doi.org/10.1117/12.819200
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2009, San Diego, California, United States

Abstract

In this paper, we present our progress on developing Sonic Infrared (IR) Imaging for structural health monitoring on steel structures. Sonic IR imaging is a fast, wide-area novel imaging NDE/SHM technique. Ultrasonic excitation was used to stimulate heating in defects, combining with Infrared Imaging to identify defects in structures. The whole process takes only about a second. We have been working on some steel specimens used in some typical steel structures. Actual heating patterns are extracted from the IR images and the actual temperature changes are mapped out. Theoretical computing is also carried out to calculate the heating pattern in the specimens with the experimental results as benchmarks.

Citation Download Citation

Qi He and Xiaoyan Han "Crack detection using sonic infrared imaging in steel structures: experiments and theory of heating patterns", Proc. SPIE 7292, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2009, 72920Q (30 March 2009); https://doi.org/10.1117/12.819200

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