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Pressure flammability thresholds in oxygen of selected aerospace materials
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Ruff, Gary Williams, Jim Beeson, Harold Pedley, Mike Harper, Susana Hirsch, David |
| Copyright Year | 2010 |
| Description | The experimental approach consisted of concentrating the testing in the flammability transition zone following the Bruceton Up-and-Down Method. For attribute data, the method has been shown to be very repeatable and most efficient. Other methods for characterization of critical levels (Karberand Probit) were also considered. The data yielded the upward limiting pressure index (ULPI), the pressure level where approx.50% of materials self-extinguish in a given environment.Parametric flammability thresholds other than oxygen concentration can be determined with the methodology proposed for evaluating the MOC when extinguishment occurs. In this case, a pressure threshold in 99.8% oxygen was determined with the methodology and found to be 0.4 to 0.9 psia for typical spacecraft materials. Correlation of flammability thresholds obtained with chemical, hot wire, and other ignition sources will be conducted to provide recommendations for using alternate ignition sources to evaluate flammability of aerospace materials. |
| File Size | 757776 |
| Page Count | 8 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_20100028155 |
| Archival Resource Key | ark:/13960/t27995459 |
| Language | English |
| Publisher Date | 2010-07-11 |
| Access Restriction | Open |
| Subject Keyword | Man/system Technology And Life Support Flammability Oxygen Wire Spacecraft Construction Materials Ignition Aircraft Construction Materials Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
