固体火箭发动机装药裂纹危险性研究综述

The review of the research on the crack risk present in the solid rocket motor grain

摘要:

对裂纹危险性进行分析,阐述了国内外近几十年的研究,总结出了影响对固体火箭发动机装药裂纹扩展的主要因素和裂纹对流燃烧引起的推进剂破坏程度的表征方式；介绍了目前裂纹扩展过程研究的主要理论模型、数值仿真水平以及实验手段,并对它们的优缺点进行了评述。

Abstract:

The crack risk is analyzed. The key factors causing the crack to propagate and the calculation methods of the propellant damaged extent caused by convective burning in the crack are concluded on the basis of the many researches both inside and outside the country in this field during tens years. The main theoretical models, numerical simulation level and the test means of the crack propagation process at present are introduced and reviewed.