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Holographic evaluation of fatigue cracks by a compressive stress (hysteresis) technique
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Freska, S. A. Rummel, W. D. |
| Copyright Year | 1974 |
| Description | Holographic interferometry compares unknown field of optical waves with known one. Differences are displayed as interference bands or fringes. Technique was evaluated on fatigue-cracked 2219-T87 aluminum-alloy panels. Small cracks were detected when specimen was incrementally unloaded. |
| File Size | 79794 |
| Page Count | 2 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19740000156 |
| Archival Resource Key | ark:/13960/t3324q90g |
| Language | English |
| Publisher Date | 1974-09-01 |
| Access Restriction | Open |
| Subject Keyword | Cracks Nondestructive Tests Fatigue Materials Construction Materials Holography Hysteresis Interferometry Ntrs Nasa Technical Reports ServerĀ (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |