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| Low-temperature Accelerated Aging Study of a Propellant |
| Received:March 11, 2014 Revised:April 15, 2014 |
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| DOI：10.7643/issn.1672-9242.2014.04.017 |
| KeyWord:propellant aging mechanical properties |
| Author | Institution |
| CAO Fu-qi |
China Airborne Missile Academy, Luoyang , China |
| LI Xiao-huan |
China Airborne Missile Academy, Luoyang , China |
| LIU Zhi-cheng |
Air Force Military Representative Office in Baotou, Huhhot , China |
| LI Yan-li |
The 46th Institute of the Sixth Academy of CASIC, Huhhot , China |
| YUN Sheng |
The 46th Institute of the Sixth Academy of CASIC, Huhhot , China |
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| Abstract: |
| Objective To study the characteristic changing trends of a propellant at-10 ℃ and-28 ℃ . Methods Lowtemperature accelerated aging test method was used. Results At low temperature, the maximum tensile strength of the aging propellant first decreased and then gradually increased. The changing trend of elongation rate was quite complicated. At room temperature and normal tensile speed, the elongation rate fluctuated around the initial value, while at low temperature and rapid tensile, the elongation rate showed linear decrease. Conclusion The changing trends of mechanical properties seemed different during aging at low or high temperature, the cause of which might be the different aging mechanism. |
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