Abstract
The thermal expansion behavior of 2D-C/C composites and the effect of fatigue loading conditions on the thermal expansion of the composites were studied. The flexural fatigue experiment was made under the stress level of 70% and 90%, cycling times of 104, 5×104, 1×105 and 1.5×105, and then the thermal behavior was investigated. The results show that fatigue loading didn't change the variation law that thermal expansion behavior is improved with the increased temperature. However, compared with the thermal expansion behavior of 2D-C/C composites at different fatigue loading conditions, the thermal expansion behavior of the samples after fatigue loading drops with increasing of the stress level and cycling times, which is due to the all kinds of fatigue damages generated during the fatigue loading.
| Original language | English |
|---|---|
| Pages (from-to) | 665-669 |
| Number of pages | 5 |
| Journal | Guti Huojian Jishu/Journal of Solid Rocket Technology |
| Volume | 35 |
| Issue number | 5 |
| State | Published - Oct 2012 |
Keywords
- C/C composites
- Coefficient of physical thermal expansion
- Coefficient of thermal expansion project
- Fatigue damage
- Fatigue loading