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Quantitative non-destructive evaluation of composite materials based on ultrasonic wave propagation (Document No: 19850026931)
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Miller, J. G. |
| Copyright Year | 1984 |
| Description | The size, shape, and orientation of damage correlates well between the polar backscatter technique and the deply technique. There is good quantitative correlation between the areas of damage indicated by the two techniques. These results suggest that the polar backscatter technique is sensitive to specific orientations of damage. The polar backscatter technique provides a good qualitative image of the size and shape of the largest zone of damage in each of the principal orientations. A quantitative estimate of the extent of these largest damage zones is obtained from the polar backscatter technique. The selective sensitivity of polar backscatter provides a useful tool for further studies of the mechanisms of impact damage in graphite fiber reinforced composite laminates. |
| File Size | 1765633 |
| Page Count | 21 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19850026931 |
| Archival Resource Key | ark:/13960/t76t5hb4c |
| Language | English |
| Publisher Date | 1984-03-15 |
| Access Restriction | Open |
| Subject Keyword | Composite Materials Nondestructive Tests Damage Assessment Wave Propagation Ultrasonic Tests Backscattering Delaminating Fiber Composites Graphite-epoxy Composites Kramers-kronig Formula Impact Damage 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 |
