| タイトル | Space radiation effects on the thermo-mechanical behavior of graphite-epoxy composites |
| 著者（英） | Sykes, George F.; Herakovich, Carl T.; Milkovich, Scott M. |
| 著者所属（英） | NASA Langley Research Center|Virginia Polytechnic Inst. and State Univ. |
| 発行日 | 1986-11-01 |
| 言語 | eng |
| 内容記述 | This investigation of composite material properties utilized T300/934 graphite-epoxy that was subjected to 1.0 MeV electron radiation for a total dose of 1.0 x 10 to the 10th rads at a rate of 5.0 x 10 to the 7th rads/hour, simulating a worst-case exposure equivalent to 30 years in space. Mechanical testing was performed on 4-ply unidirectional laminates over the temperature range of -250 F (116 K) to +250 F (394 K). In-plane elastic tensile and shear properties as well as strength were obtained. The results show that electron radiation degrades the epoxy matrix and produces products that volatilize at the temperatures considered. These degradation products plasticize the epoxy at elevated temperatures and embrittle it at low temperatures, thereby altering the mechanical properties of the composite. |
| NASA分類 | COMPOSITE MATERIALS |
| レポートNO | 87A27178 |
| 権利 | Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/379481 |
