LS_DYNA运算时出现node has out-of-range velocities错误
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做的是锯片切割陶瓷的仿真，运算几秒后就出现这样的现象，看了很多相关的帖，还是不知道怎样才能找到具体的原因，请大家帮忙看看吧。 node # 1 has out-of-range velocities x-velocity= NaN y-velocity= NaN z-velocity= NaN node # 2 has out-of-range velocities x-velocity= NaN y-velocity= NaN z-velocity= NaN node # 3 has out-of-range velocities x-velocity= NaN y-velocity= NaN z-velocity= NaN 。。。。。 接触部分的定义如下 $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$ $ CONTACT DEFINITIONS $ $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$ $ *CONTACT_ERODING_SURFACE_TO_SURFACE 3 1 3 3 0 0 0 0 0.1500 0.1000 0.000 0.000 0.000 0 0.000 0.1000E+21 1.000 1.000 0.000 0.000 1.000 1.000 1.000 1.000 0 1 0 *CONTROL_CONTACT 10.0 |
一般节点超速的问题很复杂的，意思是可能由于多种情况导致，这个和单元畸变以及负体积一样，只能一步一步调试。建议你再仔细检查下材料的材料模型参数是否合适，会不会有哪些细微地方的参数弄错了。