求助，给模型分配pipe60单元时，怎么不能划分单元网格啊？

我定义了pipe60单元,但在划分网格时出现了以下提示:
element type 2 is pipe60, which cannot be used with the lmes command, the lmesh operation is abort at line 5.
难道塑性曲管pipe60单元不能划分网格吗，怎么划分阿，哪位老师帮忙指点一下阿