abaqus error 问题总结
nikson007
nikson007 Lv.8
2014年03月26日 11:37:11
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本帖最后由 nikson007 于 2014-3-28 17:33 编辑 在visualization output database中可以查看出错的位置)The element based surface assembly__pickedsurf157 has a mixture of 3d shell edges and other types of underlying elements. If a surface has any 3d shell edges then all of its facets must be 3d shell edges.

本帖最后由 nikson007 于 2014-3-28 17:33 编辑

在visualization output database中可以查看出错的位置)

The element based surface assembly__pickedsurf157 has a mixture of 3d shell edges and other types of underlying elements. If a surface has any 3d shell edges then all of its facets must be 3d shell edges.(常见问题??在定义 surface 时,不小心选取到壳元素的"边",而定义的 surf 包含了一般的元素面和壳元素的 边,因此造成错误。 通常会选取壳元素的边都是用来做 tie 连接使用的)

The master surface assembly__pickedsurf157 does not exist.(重新选择一下即可)

12 nodes on an embedded element do not lie in any host element. Check coordinates, exterior tolerance and absolute exterior tolerance parameters, and the host element set definition. The nodes have been identified in node set ErrNodeEmbeddedNode.
The master surface assembly__pickedsurf157 does not exist.(改embed约束为tie)(??是否是因为host element没有选中,而只是选择了solid 的表明)
The area of 54 elements is zero, small, or negative. (官网建议Check coordinates or node numbering, or modify the mesh seed)这个一般是节点编号不对的问题。必须是逆时针方向。


23 nodes are used more than once as a slave node in *TIE keyword.One of the *TIE constraints at each of these nodes have been identified in node set WarNodeOverconTieSlave : 定义接触的时候,公共节点重复定义了好几次,这样可能会出现过约束问题(只是可能影响)

There are nnn unconnected regions in the model. ) 可能是接触面由空隙,最好在接触属性中定义一个容差范围。6

1st :这只是一个警告信息,并不一定以为模型存在问题。
2nd:以你的模型有2part并定义了接触为例,分析过程中,系统就会通知你,模型中有2“ UNCONNECTED REGIONS IN THE MODEL.”
如果警告信息中的这个nnn 等于你的part数目,那么就不用担心; 反之,如果nnn大于你的模型中part数目,则往往意味着几何摸存在尖角、
细变等缺陷,需要做在mesh---tools---virtual topology进行处理。一般各个parts之间定义接触,aba都会这样通知用户的,只要接触设置对了,一般没事。
650 nodes are either missing intersection with their respective master surface or outside the adjust zone.( k7 改改tie里的tolarance试试9
The elements in the element set WarnElemSurfaceIntersect-Step1 are involved surface intersections. Refer to the status and message file for further details 检查一下你单元集合的定义以及面的定义,看是否出现了相交或重复定义的情况P

The rigid part xx is missing a refernce point 刚体(or刚体约束)都必须通过stools--reference point给它定义一个参考点(RP),载荷都加在这个RP上。3

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