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High temperature static strain sensor development program
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Bailey, R. Lemkey, F. Hulse, C. Grant, H. |
| Copyright Year | 1982 |
| Description | The development of resistance strain gages which are useful for static strain measurements on nickel or cobalt superalloy parts inside a gas turbine engine on a test stand were examined. These measurements of a strain gage alloy development program which to be followed by an optional investigation of complete strain gage systems which will use the best of the alloys developed together with other system improvements is reviewed. The specific goal for the complete system is to make measurements to 2,000 micro epsilon with error of only + or - 10% over a 50 hour period. In addition to simple survival and stability, attaining a low thermal coefficient to resistivity, of order 100 ppm/K or less, is also a major goal. The first task was to select candidate alloys or alloy systems using a search of the literature and the available metallurgical theory. Alloy candidates were evaluated and compared by a grading system. Equipment and techniques were developed which are suitable for iterative studies of a variety of compositions. Many compositions were examined and significantly improved alloys were identified. |
| File Size | 216631 |
| Page Count | 9 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19850002651 |
| Archival Resource Key | ark:/13960/t7pp3xf8t |
| Language | English |
| Publisher Date | 1982-10-01 |
| Access Restriction | Open |
| Subject Keyword | Aircraft Propulsion And Power Static Pressure Dynamic Characteristics Nickel Alloys Thermal Resistance Heat Resistant Alloys Gas Turbine Engines Mechanical Properties Strain Gages Strain Measurement Cobalt Alloys Static Tests Resistance Thermometers Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
