球形装药淤泥中爆炸场数值模拟及分析NUMERICAL SIMULATION AND ANALYSIS ON EXPLOSION FIELD OF A SPHERICAL CHARE IN SILT
单海波,徐全军,陈国祥,孙宝平,邵晓亮
SHAN Hai-bo;XU Quan-jun;CHEN Guo-xiang;SUN Bao-ping;SHAO Xiao-liang (Engineering Institute of Engineering Corps;
摘要(Abstract)：
应用二维欧拉有限元程序对球形装药淤泥中爆炸进行了数值模拟。在分析淤泥特性的基础上 ,进行了模型及参数的选取。由计算结果与爆破试验实测数据的对比和分析可知 ,球形装药淤泥中的爆炸场与水中的爆炸场有相似性 ,因此可以应用本文中简化的淤泥介质模型来预测冲击波在淤泥中的衰减。
By use of two-dimensional Eulerian hydrocode,the numerical simulation on explosion of a spherical charge in silt was carried out.The model was selected and the parameters were modified on the basis of analyzing the characteristics of the silt.It is known from the comparison between calculated and measured data that the explosion field in silt is similar to that in water.For this reason,the simplified model presented in this paper can be used for prediction of shockwave attenuation in silt medium.
关键词(KeyWords)：
数值模拟;淤泥;球形装药;本构模型
Numerical simulation;Silt;Spherical charge;Constitutive model
基金项目(Foundation):
作者(Authors):
单海波,徐全军,陈国祥,孙宝平,邵晓亮
SHAN Hai-bo;XU Quan-jun;CHEN Guo-xiang;SUN Bao-ping;SHAO Xiao-liang (Engineering Institute of Engineering Corps;