<p>如图所示，红色为炸药</p> <p><img src="http://img.jishulink.com/upload/201707/1500258646931_blob.png@!jslnk" title="blob.png" alt="blob.png" alt='ls-dyna岩石爆破

<p>我查了一下手册《ls-dyna manual volume I》中关于INITIAL_DETONATION关键字对于PartID的说明，是这么写的：</p><div contenteditable="false" width="100%">Part ID of the high explosive to be lit, except in the case where the</div><div contenteditable="false" width="100%">high explosive is modeled using an ALE formulation, in which</div><div contenteditable="false" width="100%">case PID is the part ID of the mesh where the high explosive</div><div contenteditable="false" width="100%">material to be lit initially resides. However, two other options are</div><div contenteditable="false" width="100%">available:</div><div contenteditable="false" width="100%">EQ.-1: an acoustic boundary, also, *BOUNDARY_USA_SURFACE,</div><div contenteditable="false" width="100%">EQ.0: all high explosive materials are considered.</div><div contenteditable="false" width="100%">LT.-1: |PID| is the ID of a part set (*SET_PART)</div><p>我的理解是应该用空气域的Part号来填写。请你再试一下看效果</p>