講的不錯，解決了我的問題，非常專業。只有一點不好：聲音太小了，吐字不太清楚，有時候聽不清說的啥。

您好 您這個網是二維正交的嗎

請問我的梁單元材料屬性設置了 怎么沒斷裂哦 damage設置的那幾個參數需要滿足啥嗎

您這個是inp文件，請問有初始cae文件嗎

滾石的質量在哪里設置呢，我怎么查詢不到

請問球的解析剛體怎么設置啊

你好，請問這個算例里面有設置element deletion嗎？我在學習做一個桁架結構的壓縮模擬，也是用的梁單元，想模擬出壓縮斷裂的效果，材料參數我設置和這個里面一樣，但是得不到這里面這種破壞的效果而是直接突出去一條很大的尖角，是怎么回事呢，勞煩大神指點一下。

參考點設置好了，但是現在運行結果出現了錯誤The rigid bodies with the reference nodes contained in node set ErrNodeRefNodeNoMass have no mass associated with them and some degrees of freedom of the reference node are not restrained. Either mass must be defined or all of the translational degrees of freedom must be constrained. See the status file for further details. The rigid bodies with the reference nodes contained in node set ErrNodeRefNodeNoRot1Axis have atleast one axis about which the rotary inertia magnitude is zero, and the rigid bodies have atleast one rotational degree of freedom which is unconstrained. Either rotary inertia must be defined at the reference nodes or all of the rotational degrees of freedom at the reference nodes must be constrained. See the status file for further details. Abaqus/Explicit Packager exited with an error - Please see the status file for possible error messages if the file exists. 請問是什么問題呢？

剛開始學，還不太會，直接按照視頻里的教程畫的，請問怎么建立參考點呢？

請問運行結果顯示部分2缺少參考點是什么原因？怎么處理呢？麻煩了