Effects of modulus changes on the structure integrity of NEPE propellants during high temperature aging

被引：0
|
作者：
Sui, Xin [1 ]
Wan, Qian [1 ]
Wang, Ning-Fei [1 ]
Bi, Shi-Hua [1 ]
机构：
[1] School of Aerospace Science and Engineering, Beijing Inst. of Technology, Beijing 100081, China
来源：
Tuijin Jishu/Journal of Propulsion Technology | 2009年 / 30卷 / 03期
关键词：
Dynamic mechanical analysis - Solid propellants - Dynamics - Structural integrity;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The NEPE propellants were accelerated aging at 65C, 70C and 75C respectively. Dynamic mechanical properties of NEPE were determined with dynamic mechanical analysis (DMA). Through the dynamic and static conversion, the relaxed modulus was calculated and its value decreased during aging. With finite element analysis, the structural integrity calculation of the propellants was simulated. The effects of modulus changes on the structure integrity were analyzed. When the relaxed modulus of NEPE propellants during aging decreased to a certain value, the structure integrity of grain would fail.
引用
收藏
页码：370 / 374
相关论文
共 50 条
  • [1] Effects of Relaxed Modulus on the Structure Integrity of NEPE Propellant Grains during High Temperature Aging
    Sui, Xin
    Wang, Ningfei
    Wan, Qian
    Bi, Shihua
    PROPELLANTS EXPLOSIVES PYROTECHNICS, 2010, 35 (06) : 535 - 539
  • [2] High Temperature Cracking Characteristics and Theoretical Calculation of Thermodynamic Parameters of NEPE Propellants
    Ao, X. T.
    Fu, X. L.
    Bai, X.
    He, R. N.
    Liang, J. H.
    Zhao, Z. W.
    COMBUSTION SCIENCE AND TECHNOLOGY, 2025,
  • [3] Aging effects on the structural integrity of carboxyl terminated polybutadiene propellants
    Martinez, Mario
    Lopez, Raul
    Rodriguez, Jesus
    Salazar, Alicia
    THEORETICAL AND APPLIED FRACTURE MECHANICS, 2025, 136
  • [4] CHANGES IN MICROHARDNESS AND CREEP MODULUS DURING THE AGING OF POLYPROPYLENE
    CHUA, SM
    HENDERSON, PJ
    JOURNAL OF MATERIALS SCIENCE LETTERS, 1991, 10 (23) : 1379 - 1380
  • [5] CHEMICAL-CHANGES DURING THE AGING AND DECOMPOSITION OF COMPOSITE SOLID-PROPELLANTS
    VERNEKER, VRP
    KISHORE, K
    VARADARAJU, UV
    COMBUSTION AND FLAME, 1982, 45 (02) : 137 - 146
  • [6] Microstructural changes of aluminized Alloy 617 during high-temperature aging
    Jo, Tae Sun
    Kim, Se Hoon
    Kim, Young Do
    SURFACE & COATINGS TECHNOLOGY, 2011, 205 (20): : 4743 - 4749
  • [7] The effects of changes of temperature on the modulus of torsional rigidity of metal wires.
    Horton, F
    PROCEEDINGS OF THE ROYAL SOCIETY OF LONDON, 1904, 73 (494) : 334 - 336
  • [8] TIME-TEMPERATURE EFFECTS ON CHEMICAL AND SENSORY CHANGES DURING COOLING AND AGING OF CHEDDAR CHEESE
    TORRES, JA
    ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 1993, 206 : 30 - AGFD
  • [9] The effects of changes of temperature on the modulus of torsional rigidity of metal wires.
    Horton, F
    PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY OF LONDON SERIES A-CONTAINING PAPERS OF A MATHEMATICAL OR PHYSICAL CHARACTER, 1905, 204 : 1 - 55
  • [10] The temperature effects in aging index of asphalt during UV aging process
    Zeng, Wenbo
    Wu, Shaopeng
    Wen, Jin
    Chen, Zongwu
    CONSTRUCTION AND BUILDING MATERIALS, 2015, 93 : 1125 - 1131
12345