【讨论】几何非线性输出问题

ilong

For geometrically nonlinear analysis ABAQUS/Standard makes it possible to output different strain measures as well as elastic and various inelastic strains. The various total strain measures (integrated strain measure E, nominal strain measure NE, and logarithmic strain measure LE) are described in “Conventions,” Section 1.2.2. The default strain measure for output to the data (.dat) and results (.fil) files is E. However, for geometrically nonlinear analysis E is not available for output to the output database (.odb) file, and LE is the default strain measure.
  
我的模型是一个三维几何非线性模型。需要得到E的等值线图，但abaqus默认输出到odb是LE，输出到fil文件的是E。现在我觉得有两个办法可以解决这个问题：
一是通过其他是后处理软件读取fil文件？我尝试过hypermesh却一再不成功。femap听说可以但却找不到。
二是利用abaqus把LE转换为E。
希望大侠们提出解决这个问题的宝贵意见！

wjytj

hypermesh应该是可以的，先用HM的Solver将ABAQUS的fil文件转化为HM的res文件，然后读入inp文件和res文件。
  
PATRAN也可以直接读入ABAQUS的fil文件。
  
具体可以去相关版块查阅。

cafe0519

ilong,你还没有解决这个处理。

ilong

还是没有解决啊，谢谢cafe版主

chenhu

如果不用6.4的话，fil文件hypeview可以直接读入并处理！

cafe0519

ilong wrote:
还是没有解决啊，谢谢cafe版主

  
看得我都急了。一下信息供你参考。;)
  
For HyperView 6.0, the Plot client does not support plotting history data fromABAQUS ODB files.
  
In the Animation client, either the ABAQUS INP or ODB file can be loaded formodel data. The ODB file needs to be ABAQUS version 6.3. For direct ODB fileloading, the ABAQUS 6.3 ODB API from Altair’s distribution CD needs to beinstalled. The Altair tool AbaqusODB UpGrade updates ODB files created inABAQUS 6.2 (or earlier) to version 6.3.
  
When the INP file is read for model data, elements are organized into HyperViewcomponents based on section properties defined in the INP file. HyperViewdisplays all components similar to HyperMesh. Also, for INP files fromHyperMesh, component ids and colors are preserved in HyperView. In mostcases, where a corresponding INP file is available, using it over the ODB file formodel data is better.
  
While the ODB file has ELSETs, where each element can belong to multipleELSETs, it does not have section property information. As a result, when theODB file is read for model data, elements are organized into HyperViewcomponents based on ELSETs, where each element can belong to only one component. This can cause ‘holes’ in components.
  
Good luck!:I