Materials characterization and fracture mechanics of a space grade dielectric silicone insulationThe present investigation is concerned with the DC 93-500 high voltage silicone insulation material employed to pot the gun and the collector end of a traveling wave tube (TWT) used on the Landsat D Satellite. The fracture mechanics behavior of the silicone resin was evaluated by measuring the slow crack velocity as a function of the opening mode of the stress intensity factor at +25 and -10 C, taking into account various uniaxial discrete strain values. It was found that the silicone resins slow crack growth is faster than that for a high voltage insulation polyurethane material at the same stress intensity factor value and room temperature.
Document ID
19830039238
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Abdel-Latif, A. I. (General Electric Co. Philadelphia, PA, United States)
Tweedie, A. T. (General Electric Co., Valley Forge Space Systems Div., Philadelphia PA, United States)
Date Acquired
August 11, 2013
Publication Date
January 1, 1982
Subject Category
Nonmetallic Materials
Meeting Information
Meeting: In: National SAMPE Symposium and Exhibition