Abstract
A modified three-dimensional inverse scattering method is applied to reconstruct the shape of a three-dimensional flaw in a cylindrical specimen. In this modified method, a measurement plane is restricted to the plane perpendicular to the axis of the cylindrical specimen. Thus the cross-sectional image of the flaw can be obtained. By moving the measurement plane along the axis of the cylindrical specimen, the cross-sectional image is obtained for each measurement plane. The three-dimensional flaw image is reconstructed by piling up the obtained cross-sectional images. Cylindrical specimens with a cylindrical cavity model and with a hemi- spheroidal cavity model are prepared. The performance of the modified method to reconstruct the three-dimensional flaw is verified by using the experimentally measured waveforms.
| Original language | English |
|---|---|
| Pages (from-to) | 193s-200s |
| Journal | Structural Engineering/Earthquake Engineering |
| Volume | 22 |
| Issue number | 2 |
| DOIs | |
| Publication status | Published - 2005 |
Keywords
- Cross-sectional imaging
- Pulse-echo method
- Shape reconstruction
- Three-dimensional flaw
ASJC Scopus subject areas
- Civil and Structural Engineering
- Building and Construction
- Arts and Humanities (miscellaneous)
- Geotechnical Engineering and Engineering Geology