Abstract
This paper discusses some important recent developments in quantitative non-destructive evaluation, more specifically in quantitative ultrasonics. The importance of measurement models is emphasized, and the interaction of ultrasound with cracks is discussed in some detail. Three examples are discussed, both from a theoretical and an experimental point of view. These are backscattering of body waves from a surface-breaking crack, reflection and transmission of surface waves by a surface-breaking crack and line-focus acoustic microscopy of a specimen containing a subsurface crack. Mathematical measurement models also play a useful role in the training of neural networks, as discussed by the example of backscattering from a surface-breaking crack.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 385-401 |
| Number of pages | 17 |
| Journal | Journal of Sound and Vibration |
| Volume | 159 |
| Issue number | 3 |
| DOIs | |
| State | Published - Dec 22 1992 |
Funding
The work reported in this paper was carried out in the course of research sponsored by the Office of Naval Research under Grant NOO014-89-J-1362 to Northwestern University.
ASJC Scopus subject areas
- Condensed Matter Physics
- Mechanics of Materials
- Acoustics and Ultrasonics
- Mechanical Engineering