Research on Aging Equivalent Temperature of Solid Propellants Stored at Natural Cycle Temperature

CHI Xu-hui1

(1.Science and Technology on Aerospace Chemical Power Laboratory, Hubei Institute of Aerospace Chemotechnology, Xiangyang, China 441003)
【Knowledge Link】pre-exponential factor

【Abstract】Conventional methods for evaluating aging effects of solid propellants stored at natural temperature need long-term (at least 10 years) and detailed (at least daily) environment temperature data. It is very difficult or expensive to access those data in storage places. Even if the data have been obtained, it would be a very heavy workload to process them. A novel method has been established to substitute the conventional methods limited by data acquisition and processing. The method is based on monthly average temperature data. According to seasonal and diurnal variation models of natural temperature, the parameters of these models have been calculated from monthly average temperature data and local climate characteristics. Therefore, the aging equivalent temperature could be evaluated, and the natural temperature aging effects could be predicated. This method is simpler than conventional method in data processing. And the required temperature data of the method can be easily obtained through public ways. Aging equivalent temperatures of three typical solid propellants ((hydroxyl-terminated polybutadiene (HTPB), nitrate ester plasticized polyether (NEPE), composite modified double-base (CMDB)) stored in four typical regions were calculated by the novel method. Results show that the aging equivalent temperature is much higher than the annual average temperature. The difference between the aging equivalent temperature and the annual average temperature increases with the increase of the annual temperature range. As the aging activation energy of solid propellant increases, the aging equivalent temperature approaches the maximum monthly average temperature, and the difference between the equivalent temperature and the annual average temperature becomes larger.

【Keywords】 aging; solid propellant; aging equivalent temperature; annual temperature range; diurnal temperature range;


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    [1] WANG Hong-Fan, ZHANG Guang-Zhong. QJ2328–92 Test method of storage aging for composite solid propellant [S]. Beijing: Institute of aerospace standardization, 1992 (in Chinese).

    [2] XIE Yu-fang, FENG Zhi-xin, ZHENG Yun-zhong, et al. Rubber, vulcanized or thermoplastic—Estimation of life-time and maximum temperature of use from an Arrhenius plot [S]. Beijing: Standards Press of China, 2005 (in Chinese).

    [3] XING Yao-guo, DONG Ke-hai, SHEN Wei, et al. Practical engineering of solid rocket motor [M]. Beijing: National Defense Industry Press, 2010 (in Chinese).

    [4] DING Biao, ZHANG Xu-dong, LIU Zhu-qing, et al. Correlation between Alternating Temperature Accelerated Aging and Real World Storage of HTPB Propellant [J]. Chinese Journal of Energetic Materials (Hanneng Cailiao), 2011, 19(1): 50–54 (in Chinese).

    [5] DU Xi-juan, PENG Song. The application of daily performance overlay method [C]//Proceedings of the 27th seminar for the third Aerospace professional information network. Shenyang, 2006 (in Chinese).

    [6] WANG Bin, CHANG Xin-long. The cumulative damage-reaction theory life model to the storage and usage of solid rocket propellant [J]. Journal of Projectile, Rockets, Missiles and Guidance, 2007, 27(1): 171–173 (in Chinese).

    [7] ZHANG Wen-wei, LI Hong-min. Induction Treatment of Environmental Profile of Natural Storage Station [J]. Equipment En‑vironmental Engineering, 2011, 8(1): 61–66 (in Chinese).

    [8] LIU Zi-ru, SHAO Ying-hui, REN Xiao-ning, et al. Mathematical models and its calculations for predicting the life of explosives and propellants [J]. Chinese Journal of Explosives & Propel‑lants, 2016, 39(2): 1–7 (in Chinese).

    [9] LIU Bing-ji. Calculation on reliable life of solid-propellant extensibility [J]. Journal of Propulsion Technology, 1990(6): 46–50 (in Chinese).

    [10] LIU Bing-ji. Simulation calculation of storage reliable life of solid-propellant modulus by Monte Carlo method [J]. Journal of Propulsion Technology, 1992, 13(2): 68–71 (in Chinese).

    [11] JIN Liu-yi, MA Fang-mei, TANG Jian-hua. The construction of an air temperature calculating model and its fuzzy optimum seeking [J]. J Huazhong Univ of Sci. & Tech, 1994, 22(3): 82–86 (in Chinese).

    [12] National Meteorological Information Center. Meteorological Data Network of China: Climate Background [EB/OL]. [2018-12-13] . (in Chinese)

    [13] CHEN Tie-xi, CHEN Xing. Variation of diurnal temperature range in China in the past 50 years [J]. Plateau Meteorology, 2007, 26(1):150–157 (in Chinese).

    [14] TANG Shuang. The research of natural room temperature of building [D]. Heiongjiang: Harbin Institute of Technology, 2008 (in Chinese).

    [15] Weather Network: Temperature Information [EB/OL].[2018-12-10] . (in Chinese)

    [16] Cerri S, Bohn M A, Menke K, et al. Aging of HTPB/Al/AP rocket propellant formulations investigated by DMA measurements [J]. Propellants Explosives, Pyrotechnics, 2013, 38(2), 190–198.

    [17] Judge M D. An investigation of composite propellant accelerated ageing mechanisms and kinetics [J]. Propellants, Explo‑sives, Pyrotechnics, 2003, 28(3): 114–119.

    [18] Perrault G, Bedard M, Lavertu R R, et al. Accelerated aging of a composite explosive [J]. Propellants and Explosives 1979(4): 45–49.

    [19] WANG Chun-hua, PENG Wang-da, WENG Wu-jun, et al. Theoretical predication of storage life for HTPB propellant [J]. Journal of Propulsion Technology, 2000, 21(3): 63–66 (in Chinese).

    [20] ZHANG Fu-gao. Aging test if certain solid rocket motor grain [J]. New Technologies and New Processes, 2014(12): 91–93 (in Chinese).

    [21] HAO Zhong-zhang, LIU Zi-ru, XIE Jun-jie, et al. Predication lower confidence limit of service life for solid propellant FH-94 [J]. Acta Armamentarii, Fire Chemical Part, 1994(2): 20–23 (in Chinese).

    [22] ZHANG Xing-gao, ZHANG Wei, WANG Chun-hua, et al. The aging property and life prediction of NEPE propellant under constant strain [J]. Journal of National University of Defense technology, 2009, 31(3): 20–24 (in Chinese).

    [23] ZHANG La-ying, LIU Z-i ru, HENG Shu-yun, et al. Estimation of life span for NEPE propellant [J]. Journal of Propulsion Technology, 2006, 27(6): 572–576 (in Chinese).

    [24] FAN Xi-ping, LIU Zi-ru, SUN Li-xia, et al. A prediction on the physical aging life of NEPE-5 propellant [J]. Journal of Propul‑sion Technology, 2003, 26(1):43–46 (in Chinese).

    [25] Zhao Fengqi, Heng Shuyun, Hu Rongzu, et al. A study of kinetic behaviours of the effective centralite-stabilizer consumption reaction of propellants [J]. Journal of Hazardous Materials, 2007, 145(1–2): 45–50.

    [26] Zhao Fengqi, Heng Shuyun, Hu Rongzu, et al. A study of kinetic behaviours of the effective centralite-stabilizer consumption reaction of propellants [J]. Journal of Hazardous Materials, 2007, 145(1–2): 45–50.

    [27] Volk F, Bohn M A, Wunsch G. Determination of chemical and mechanical properties of double base propellants during aging [J]. Propellants, Explosives, Pyrotechnics, 1987, 12(3): 81–87.

    [28] Wise J, Gillen K T, Clough L. An ultrasensitive technique for testing the Arrhenius extrapolation assumption for thermally aged elastomers [J]. Polymer Degradation and Stability, 1995, 49(3): 403–418.

This Article


CN: 51-1489/TK

Vol 27, No. 12, Pages 984-990

December 2019


Article Outline



  • 1 Introduction
  • 2 Theoretical model
  • 3 Applications
  • 4 Conclusion
  • References