| 长期贮存的固体火箭发动机药柱的温度应力分析 |
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| 引用本文： | 冯志刚,周建平. 长期贮存的固体火箭发动机药柱的温度应力分析[J]. 推进技术, 1994, 15(6): 42-49 |
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| 作者姓名： | 冯志刚 周建平 |
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| 作者单位： | 国防科技大学航天技术系 |
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| 摘 要： | 分析了固体火箭发动机药柱在长期贮存过程中，由于温度载荷谱的变化所引起的力学响应，基于粘弹性积分蠕变型本构关系，推导出了能分析粘弹结构热载荷的有限元模型，并用它分析了梁、厚壁圆筒与真实固体火箭发动机的热应力问题。
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| 关 键 词： | 固体推进剂 火箭发动机 推进剂药柱 粘弹性 |
THE THERMAL STRESS OF SOLID ROCKET MOTOR GRAIN IN STORAGE |
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| Feng Zhigang and Zhou Jianping. THE THERMAL STRESS OF SOLID ROCKET MOTOR GRAIN IN STORAGE[J]. Journal of Propulsion Technology, 1994, 15(6): 42-49 |
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| Authors: | Feng Zhigang and Zhou Jianping |
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| Affiliation: | Department of Astronautics, National Univ. of Defense Tech., Changsha, 410073;Department of Astronautics, National Univ. of Defense Tech., Changsha, 410073 |
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| Abstract: | Stress analysis of solid propellant motor when temperature varies in storage is presented in this paper. A viscoelastic finite element model based on integral creep constitutive relation is obtained and applied to .the thermal stress analysis for viscoelastic beams, cylinders and solid propellant motors. |
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| Keywords: | Solid propellant rocket engine Propellant grain Propellant storability Viscoelasticity Thermal stress |
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