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本帖最后由 feitian2086 于 2012-3-8 12:38 编辑
我顺利做出爆破模拟效果以后,发现爆破整体时间滞后许多,别人做的300微秒裂纹扩展将基本成型,而我的则需要900微秒,甚至一千多微秒。下面是图形对比。
我做出的时间更长,不知是什么原因。求助各位前辈和高人,望给予指点。在下不胜感激!
别人的节点应力时间图
我的的节点应力时间图
整体上看都是滞后几百微秒,不知道是什么原因。
下面附上关键字文件
$
$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
$ MATERIAL DEFINITIONS $
$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
$
*MAT_PLASTIC_KINEMATIC
1,1360,3000e6,0.36,5e6,1750e6,1.0
0.00,0.00,0.00
*MAT_ADD_EROSION
1,12345
-4e6,77.55e6,12345,12345,12345,12345,12345
*MAT_HIGH_EXPLOSIVE_BURN
2,1100,3000,0.825e6,0.0000000,0.0000000,0.0000000,0.0000000
*EOS_JWL
2,0.1200e11,0.015e9,4.1500,0.9500,0.30,1.0e9,1.0
*INITIAL_DETONATION
2,2.9483,2.9483,0.0
$
$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
$ PARTS DEFINITIONS $
$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
$
$
*PART
Part 1 for Mat 1 and Elem Type 1
1 1 1 0 0 0 0
$
*PART
Part 2 for Mat 2 and Elem Type 1
2 1 2 2 0 0 0
$
$
$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
$ COORDINATE SYSTEMS $
$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
$
*BOUNDARY_NON_REFLECTING_2D
1 1 1
$
$
$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
$ CONTROL OPTIONS $
$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
$
*CONTROL_ENERGY
2 2 2 2
*CONTROL_SHELL
20.0 1 -1 1 2 2 1
*CONTROL_ALE
2 1 2 -1.00 0.00 0.00 0.00 0.00
0.00 0.100E+21 1.00 0.00 0.00 0
*CONTROL_TIMESTEP
0.0000 0.6000 0 0.00 0.00
*CONTROL_TERMINATION
0.002 0 0.00000 0.00000 0.00000
$
$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
$ TIME HISTORY $
$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
$
*DATABASE_BINARY_D3PLOT
0.00001
*DATABASE_BINARY_D3THDT
0.0001
$
$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
$ DATABASE OPTIONS $
$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
$
*DATABASE_EXTENT_BINARY
0 0 3 1 0 0 0 0
0 0 4 0 0 0
*END
完整K文件附件
望各位高人指点迷津啊。在此对各位深表感谢!
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