摘要
为了获得预控破片战斗部破片的飞散规律,利用ANSYS/LS-DYNA有限元软件对某榴弹壳体膨胀和破片破碎过程进行数值模拟,得到破片初速和飞散方向角沿弹轴曲线分布,与破碎性试验回收破片的统计结果和经验公式都基本一致,这说明模型简化及计算参数的正确性.
In order to get the fragments scattering rule of pre-formed fragments, the numerical simulation of some HE shell expanding and fragments crushing process is performed based on ANSYS/LS-DYNA finite element software. Accordingly the fragments initial velocity and scattering direction angle which distributes along the HE shell axis are gained. The gained results are basially in accord with the statistical results of recovery fragments in crushing experiments and empirical formula and consequently iilustrate the accuracy of model simplification and calculation parameters.
出处
《沈阳理工大学学报》
CAS
2009年第1期37-40,共4页
Journal of Shenyang Ligong University
关键词
预控破片
破片初速
LS—DYNA
数值模拟
pre-formed fragments
fragments initial velocity
LS-DYNA
numerical simulation