炸药冲击起爆模拟

wape2009

我想模拟炸药药柱在传爆药柱作用下，被冲击起爆过程。模型如下（准二维轴对称模型）
被发炸药（part1)及传爆药（part2)材料状态方程如下：
*MAT_NULL
         1 1.8420000 0.0000000 0.0000000 0.0000000 0.0000000 0.0000000 0.0000000      
*EOS_JWL
         1 69.690000 -1.727000 7.8000000 3.9000000 0.8578000 0.1020000 1.0000000
*EOS_JWL
         1 8.5240000 0.1802000 4.5500000 1.3000000 0.3800000 0.1020000 1.0000000
*EOS_ignition_and_growth_of_reaction_in_he
1,0.0,0.0,0.0,0.0,0.667,0.0,0.0
0.0,0.0,0.0,0.0,0.015,7.4300E+11,0.031,1.0
0.111,0.667,0.0,0.0,20,0.0,0.0,0.0
4,1.0,0.333,2.0,0.25,0.0  
*MAT_HIGH_EXPLOSIVE_BURN
2,1.6500000,0.7360000,0.2500000,0.0000E+00      
*EOS_JWL
2,5.3177,0.08933,4.6000000,1.05000000,0.3300000,8.0000E-02,1.0000000   
炸药均采用ALE算法
*SECTION_SOLID_ALE
1,11
*SECTION_SOLID_ALE
2,11

*CONTROL_ALE
         2         1         2      -1.0  
*ALE_MULTI-MATERIAL_GROUP
        1          1
        2          1
在传爆药柱上设置起爆点。运行结果传宝药起爆，而被发药柱未被起爆。
请教高手！不甚感谢！

xiaoyixiao

LZ,你材料模型1能同时用三个状态方程吗

wyc412721

楼主设置反了吧

wape2009

冲击起爆不是要设置未反应炸药JWL状态方程，反应产物JWL状态方程及三项点火增长模型。我设施的是传爆药为PART2，最下面炸药为part1。新手请教，不知设置是否有问题？

wape2009

*MAT_NULL
         1 1.8420000 0.0000000 0.0000000 0.0000000 0.0000000 0.0000000 0.0000000      
*EOS_ignition_and_growth_of_reaction_in_he
1,3.729,0.05412,4.453,1.102,0.667,4.884e-06,40.6
-1.339,2.09e-05,7.2,3.6,0.015,30,0.0045,1.0
0.111,0.667,0.0,0.0,4,0.0,0.15,298
1.805e-05,0.111,1.0,2.0,0.25,0.0  
*MAT_HIGH_EXPLOSIVE_BURN
2,1.6500000,0.7360000,0.2500000,0.000E+00      
*EOS_JWL
2,5.3177,0.08933,4.6000000,1.05000000,0.3300000,8.0000E-02,1.0000000   
这样设置对吗？我运行出错，好像单位不对。

gdyu_yu

请楼主将完整的K文件压缩一下，上传上来。。。以方便别人帮你调试。。。

wape2009

这是我模拟的冲击起爆结果，怎么后面炸药另一点出现起爆现象，过程不连续。不知模拟的对不对？

feng_0

wape2009 发表于 2010-11-25 16:01
这是我模拟的冲击起爆结果，怎么后面炸药另一点出现起爆现象，过程不连续。不知模拟的对不对？
...

你的，炸药起爆点怎么设置的

feng_0

你好，请教一下：当炸药体积较大时，一点起爆后，其他的炸药不一起爆炸，是怎么回事？
.