海军航空工程学院学报2016，Vol.31Issue(2)：117-120,4.DOI:10.7682/j.issn.1673-1522.2016.02.004
三维J积分理论在固体火箭发动机裂纹研究中的应用
Application of 3-D J-integral Theory in the Solid Rocket Motor Crack Reasearch
徐学文 1任建存 2倪保航1
作者信息
- 1. 海军航空工程学院 接改装训练大队，山东烟台264001
- 2. 海军航空工程学院 控制工程系，山东烟台264001
- 折叠
摘要
Abstract
Aiming to the 3-D characteristics of the crack and its force application complexity in solid rocket motor grain, the application of 3-D J-integral theory and numerical simulation to calulate the J-integral values at the Gauss integration points of the crack line was proposed in the dissertation, and the 3-D volumic J-integral expression and the finite-element numerical analysis method were given out. The wedge crack which traversed through the projection of star grain was simu⁃lated as a typical crack in solid rocket motor. As shown in the calculation results, the J-integral distribution along the crack front line behaved as the varying characteristics of high value at the center and low value in both sides, which proved that 3-D J-integral calculation method was suitable to reasearch the risk of solid rocket motor grain crack.关键词
固体火箭发动机/裂纹/三维J积分/数值仿真Key words
solid rocket motor/crack/3-D J-integral/numerical simulation分类
航空航天引用本文复制引用
徐学文,任建存,倪保航..三维J积分理论在固体火箭发动机裂纹研究中的应用[J].海军航空工程学院学报,2016,31(2):117-120,4.
