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Ultrasonic and radiographic evaluation of advanced aerospace materials: ceramic composites
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Generazio, Edward R. |
| Copyright Year | 1990 |
| Description | Two conventional nondestructive evaluation techniques were used to evaluate advanced ceramic composite materials. It was shown that neither ultrasonic C-scan nor radiographic imaging can individually provide sufficient data for an accurate nondestructive evaluation. Both ultrasonic C-scan and conventional radiographic imaging are required for preliminary evaluation of these complex systems. The material variations that were identified by these two techniques are porosity, delaminations, bond quality between laminae, fiber alignment, fiber registration, fiber parallelism, and processing density flaws. The degree of bonding between fiber and matrix cannot be determined by either of these methods. An alternative ultrasonic technique, angular power spectrum scanning (APSS) is recommended for quantification of this interfacial bond. |
| File Size | 6979861 |
| Page Count | 12 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19900012085 |
| Archival Resource Key | ark:/13960/t9s22w596 |
| Language | English |
| Publisher Date | 1990-01-01 |
| Access Restriction | Open |
| Subject Keyword | Nondestructive Tests Alignment Joints Junctions Delaminating Aircraft Construction Materials Imaging Techniques Porosity Ceramics Complex Systems Spacecraft Construction Materials 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 |
