Loading...
Please wait, while we are loading the content...
Similar Documents
Evaluation of nondestructive testing techniques for the space shuttle nonmetallic thermal protection system
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Tiede, D. A. |
| Copyright Year | 1972 |
| Description | A program was conducted to evaluate nondestructive analysis techniques for the detection of defects in rigidized surface insulation (a candidate material for the Space Shuttle thermal protection system). Uncoated, coated, and coated and bonded samples with internal defects (voids, cracks, delaminations, density variations, and moisture content), coating defects (holes, cracks, thickness variations, and loss of adhesion), and bondline defects (voids and unbonds) were inspected by X-ray radiography, acoustic, microwave, high-frequency ultrasonic, beta backscatter, thermal, holographic, and visual techniques. The detectability of each type of defect was determined for each technique (when applicable). A possible relationship between microwave reflection measurements (or X-ray-radiography density measurements) and the tensile strength was established. A possible approach for in-process inspection using a combination of X-ray radiography, acoustic, microwave, and holographic techniques was recommended. |
| File Size | 4028535 |
| Page Count | 135 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19730002166 |
| Archival Resource Key | ark:/13960/t4tj38n57 |
| Language | English |
| Publisher Date | 1972-07-01 |
| Access Restriction | Open |
| Subject Keyword | Space Vehicles Nondestructive Tests Thermal Control Coatings Thermal Protection Ultrasonic Tests Space Shuttles X Ray Analysis Tensile Strength Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
