固体火箭技术Issue(1)：50-54,5.DOI:10.7673/j.issn.1006-2793.2015.01.09
固体火箭发动机含裂纹药柱应力场有限元模拟的新方法
A new simulation method of 3D crack of solid rocket motor grain
摘要
Abstract
To study the variations in stress/strain field when the crack appears,a new technique to simulate 3D crack of solid rocket motor grain based on singular element and birth⁃death element was proposed. A part⁃through crack for solid rocket motor grain simulated by utilizing this method and stress distribution caused by crack were analyzed. Simulation results indicate that the method is correct,effective,and convenient for further research,especially suitable for comparative analysis on the stress distribution changes and the stress reliefs which are caused by crack or debond.关键词
固体火箭发动机/药柱/奇异单元/生死单元/裂纹Key words
solid rocket motor/grain/singular element/birth-death element/crack分类
航空航天引用本文复制引用
任海峰,高鸣..固体火箭发动机含裂纹药柱应力场有限元模拟的新方法[J].固体火箭技术,2015,(1):50-54,5.基金项目
国防预研项目（51328050101）。 （）
