Nmerical analysis of SRM's safety under nmechanic impact

CHEN Guang-nan; ZHANG Wei-hua

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Nmerical analysis of SRM's safety under nmechanic impact

更新时间：2026-07-07

- Nmerical analysis of SRM's safety under nmechanic impact
- Vol. 21, Issue 4, (2006)
- 作者机构：
  
  国防科技大学航天与材料工程学院,长沙,410073
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2006
- 稿件说明：
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CHEN Guang-nan, ZHANG Wei-hua. Nmerical analysis of SRM's safety under nmechanic impact[J]. 2006, 21(4).
DOI：

CHEN Guang-nan, ZHANG Wei-hua. Nmerical analysis of SRM's safety under nmechanic impact[J]. 2006, 21(4). DOI：

摘要

以机械撞击载荷下固体推进剂裂纹摩擦热点细观模型为基础

考虑推进剂基体粘性加热

结合热粘弹理论和动力有限元法

分析计算发动机结构撞击变形及装药内部热点形成

确定产生高温热点撞击临界速度。通过对含能材料Steven撞击试验、小型试验发动机撞击试验分析计算及结果对比

证明了理论模型及计算方法的有效性。

Abstract

Based on the meso-scale model for the hot-spot of crack friction in solid propellant

with the consideration of the theory of thermo-visco-elasticity and using the method of hydrodynamic finite elements

numerical investigations of solid rocket motor(SRM) structural deformation and hot-spot formation in SRM's grain under mechanic impact were carried out

in which the effect of viscous heating in the solid propellant matrix was also considered.Critical impact velocities for the solid propellant ignition were determined.In comparison with the results of impact tests of the energetic material samples and small SRM

it is showed that results obtained through numerical analysis agree reasonably well with that of experiments.

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Related Institution

Electromechanics and Material College, Dalian Maritime University

School of Aeronautics Science and Technology, Beijing Institute of Technology

School of Aerospace Engineering，Beijing Institute of Technology

College of Engineering Science and Technology，Shanghai Ocean University

The 41st Institute of the Sixth Academy of China Aerospace;Science and Industry Corporation Limited

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