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Comparison of weibull strength parameters from flexure and spin tests of brittle materials
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Zaretsky, Erwin V. Holland Jr., Frederic A. |
| Copyright Year | 1991 |
| Description | Fracture data from five series of four point bend tests of beam and spin tests of flat annular disks were reanalyzed. Silicon nitride and graphite were the test materials. The experimental fracture strengths of the disks were compared with the predicted strengths based on both volume flaw and surface flaw analyses of four point bend data. Volume flaw analysis resulted in a better correlation between disks and beams in three of the five test series than did surface flaw analysis. The Weibull (moduli) and characteristic gage strengths for the disks and beams were also compared. Differences in the experimental Weibull slopes were not statistically significant. It was shown that results from the beam tests can predict the fracture strength of rotating disks. |
| File Size | 581163 |
| Page Count | 12 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19910015279 |
| Archival Resource Key | ark:/13960/t4qk2b44w |
| Language | English |
| Publisher Date | 1991-01-01 |
| Access Restriction | Open |
| Subject Keyword | Mechanical Engineering Nondestructive Tests Rotating Disks Surface Defects Ceramics Brittle Materials Flexing Spin Tests Bend Tests Graphite Beams Supports Silicon Nitrides Fracture Strength Fracturing Weibull Density Functions Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
