求 ls-dyna3D 聚能射流 高人指教
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| 我用ls-dyna做三维聚能射流侵彻钢板。模型由炸药，药型罩，空气，靶板四部分组成。炸药，药型罩，空气采用欧拉网格建模，单元使用多物质ALE算法，靶板采用拉格朗日建模，并且靶板与空气和药型罩采用耦合算法。 线出现的问题如下： 1）当靶板采用*MAT_PLASTIC_KINEMATIC材料模型时，k文件求解时会提示如下错误： 
2）当靶板采用J-C材料模型和*EOS_GRUNEISEN状态方程时，k文件求解时会提示如下错误： 
当删除靶板时，聚能射流可以正常形成。 k文件关键部分如下，困扰不本人已久，求高人指点，不胜感激，谢了。 $ $ $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$ $ SECTION DEFINITIONS $ $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$ $ *SECTION_SOLID_ALE 1 11 *SECTION_SOLID_ALE 2,11 *SECTION_SOLID_ALE 3,11 *SECTION_SOLID 4,0 *ALE_MULTI-MATERIAL_GROUP 1,1 2,1 3,1 *CONSTRAINED_LAGRANGE_IN_SOLID 1,2,0,0,0,5,3,0 0,0,0.15 *SET_PART_LIST 1 4,5 *SET_PART_LIST 2 2,3 *CONTROL_ALE 2,1,2,-1.0,0.0,0.0,0.0 0.0,0.0,0.0 $ $ $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$ $ MATERIAL DEFINITIONS $ $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$ $ *MAT_HIGH_EXPLOSIVE_BURN 1,1.787,0.839,0.34,0.0,0.0,0.0,0.0 *EOS_JWL 1,5.814,0.06801,4.1,1.0,0.35,0.09,1.0 *INITIAL_DETONATION 1,0,8.7,0,0 *MAT_JOHNSON_COOK 2,8.96,0.477 0.9E-3,0.292E-2,0.31,0.25E-1,1.09,0.136E+4,293.,0.1E-5 0.38E-5,-9.0,3.0,0.0,0.0,0.0,0.0,0.0 0.0 *EOS_GRUNEISEN 2,0.394,1.49,0.0,0.0,1.99,0.0,0.0 0.0 *MAT_NULL 3,0.125E-2,0.0,0.0,0.0,0.0,0.0,0.0 $*EOS_LINEAR_POLYNOMIAL $3,0.0,0.0,0.0,0.0,0.4,0.4,0.0 $253312.5,1.0 *EOS_GRUNEISEN 3,0.344,0.0,0.0,0.0,1.4,0.0,0.0 0.0 *MAT_PLASTIC_KINEMATIC 4,7.83,2.07,0.3,5.0E-3,0.0,0.0 0.0,0.0,0.4 *MAT_PLASTIC_KINEMATIC 5,7.83,2.07,0.3,5.0E-3,0.0,0.0 0.0,0.0,0.4 |
ggbon 
