| 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。 |
| 关键词: 固体推进剂火箭发动机 推进剂药柱 推进剂可储存性 粘弹性 热应力 |
| DOI： |
| 分类号:V512.3 |
| 基金项目:国家自然科学基金 |
|
| THE THERMAL STRESS OF SOLID ROCKET MOTOR GRAIN IN STORAGE |
|
Feng Zhigang, Zhou Jianping
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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. |
| Key words: Solid propellant rocket engine Propellant grain Propellant storability Viscoelasticity Thermal stress |
