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  • 1
    facet.materialart.
    Unknown
    Materials testing of the IUS techroll seal material (1984)
    In:  CASI
    Details
    Publication Date: 2019-06-28
    Description: As a part of the investigation of the control system failure Inertial Upper Stage on IUS-1 flight to position a Tracking and Data Relay Satellite (TDRS) in geosynchronous orbit, the materials utilized in the techroll seal are evaluated for possible failure models. Studies undertaken included effect of temperature on the strength of the system, effect of fatigue on the strength of the system, thermogravimetric analysis, thermomechanical analysis, differential scanning calorimeter analysis, dynamic mechanical analysis, and peel test. The most likely failure mode is excessive temperature in the seal. In addition, the seal material is susceptible to fatigue damage which could be a contributing factor.
    Keywords: MECHANICAL ENGINEERING
    Type: NASA-TM-86462 , NAS 1.15:86462
    Format: application/pdf
    Location Call Number Expected Availability
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