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Terahertz nde application for corrosion detection and evaluation under shuttle tiles
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Seebo, Jeffrey P. Kammerer, Catherine C. Anastasi, Robert F. Madaras, Eric I. Hintze, Paul E. Smith, Stephen W. Lomness, Janice K. Winfree, William P. Russell, Richard W. |
| Copyright Year | 2007 |
| Description | Pulsed Terahertz NDE is being examined as a method to inspect for possible corrosion under Space Shuttle Tiles. Other methods such as ultrasonics, infrared, eddy current and microwave technologies have demonstrable shortcomings for tile NDE. This work applies Terahertz NDE, in the frequency range between 50 GHz and 1 THz, for the inspection of manufactured corrosion samples. The samples consist of induced corrosion spots that range in diameter (2.54 to 15.2 mm) and depth (0.036 to 0.787 mm) in an aluminum substrate material covered with tiles. Results of these measurements are presented for known corrosion flaws both covered and uncovered and for blind tests with unknown corrosion flaws covered with attached tiles. The Terahertz NDE system is shown to detect all artificially manufactured corrosion regions under a Shuttle tile with a depth greater than 0.13 mm. |
| File Size | 3861646 |
| Page Count | 6 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_20070016023 |
| Archival Resource Key | ark:/13960/t8hf2t55g |
| Language | English |
| Publisher Date | 2007-01-01 |
| Access Restriction | Open |
| Subject Keyword | Spacecraft Design, Testing And Performance Nondestructive Tests Tiles Corrosion Space Shuttles Inspection Infrared Radiation Defects Ultrasonics Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
