Further Development of the Simulation of Sonic IR Imaging of Cracks in Metals with Finite-Element Models
- Department of Electrical and Computer Engineering, Wayne State University, Detroit, MI 48202 (United States)
- Department of Mechanical Engineering, Wayne State University, Detroit, MI 48202 (United States)
- Institute for Manufacturing Research, Wayne State University, Detroit, MI 48202 (United States)
- Physics Department, Wayne State University, Detroit, MI 48202 (United States)
Sonic IR imaging, which combines infrared imaging and ultrasound excitation, as a relative new member of the NDE family, has been drawing wider and wider attention due to its fast, wide area inspection capability. In our previous presentations and publications, we have described the application of acoustic chaos to Sonic IR imaging and have provided experimental illustrations as well. In addition, we have described realistic finite-element models that simulate the heating of cracks in metals by both chaotic and non-chaotic sound. These models allow for both friction and plastic deformation as sources of heating. In this paper, we present our further study on the physical mechanisms that are responsible for the advantages of chaotic sound for Sonic IR crack detection. Using finite-element analysis, here we will present theoretical explanations, both for the origin of the chaos, and for the mechanisms responsible for the chaotic enhancement of crack detection.
- OSTI ID:
- 21054973
- Journal Information:
- AIP Conference Proceedings, Vol. 894, Issue 1; Conference: Conference on review of progress in quantitative nondestructive evaluation, Portland, OR (United States), 30 Jul - 4 Aug 2006; Other Information: DOI: 10.1063/1.2718009; (c) 2007 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
- Country of Publication:
- United States
- Language:
- English
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