| タイトル | Mechanical characterization of unnotched SCS6/Ti-15-3 metal matrix composites at room temperature |
| 著者（英） | Johnson, W. S.; Lubowinski, S. J.; Highsmith, Alton L. |
| 著者所属（英） | NASA Langley Research Center|BASF Structural Materials, Inc.|Texas A&M Univ. |
| 発行日 | 1990-01-01 |
| 言語 | eng |
| 内容記述 | The Ti-15-3 metal matrix composites containing silicon-carbide (SCS6) fibers, in five different lay-ups, have been tested at room temperature to determine static strengths and mechanical properties. Experimental data and predicted values of the laminate properties and strengths showed good correlation. The off-axis laminate plies (that is, 90 and 45 deg) suffered fiber/matrix interface failures at stress levels as low as 20 ksi, thus significantly affecting the mechanical properties of the laminate. Edge replicas were used to verify the fiber/matrix separations. Microscopic examinations determined that the fiber/matrix failures were occurring in the titanium/silicon reaction layer. Fatigue tests were performed on unnotched specimens to determine the number of cycles to failure versus cyclic stress level. It was found that the stress in the 0 deg fiber could be used to correlate the fatigue life of different laminates containing 0 deg plies. |
| NASA分類 | COMPOSITE MATERIALS |
| レポートNO | 91A18690 |
| 権利 | Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/351269 |
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