Random element in Ansys

- June 26, 2019 at 7:40 pm
  
  mekafime
  Subscriber
  
  Hi
  
  In my model I found that there are 2 elements type "Solid 187" I think that default is only SOLID186,
  
         16       476 SOLID186      0.000   0.000000
         17        88 SOLID187      0.000   0.000000
         18        26 SOLID186      0.000   0.000000
         19        14 SOLID186      0.000   0.000000
         20       418 SOLID186      0.000   0.000000
         21        22 SOLID186      0.000   0.000000
         22       440 SOLID186      0.000   0.000000
         23       454 SOLID186      0.000   0.000000
         24       396 SOLID186      0.000   0.000000
         25       396 SOLID186      0.000   0.000000
         26        24 SOLID186      0.000   0.000000
         27        22 SOLID186      0.000   0.000000
         28        99 SOLID187      0.000   0.000000
         29        26 SOLID186      0.000   0.000000
         30        22 SOLID186      0.000   0.000000
         31       234 CONTA174      0.000   0.000000
         33       234 CONTA174      0.000   0.000000
         35       224 CONTA174      0.000   0.000000
  
  How can I found this element in my model and change to Solid 186 ?
  
  Thanks
- June 26, 2019 at 10:29 pm
  
  peteroznewman
  Subscriber
  
  The SOLID187 elements are Tetrahedral shapes. Most of the SOLID186 elements would be Hexahedral shapes.
  
  If you request a Mesh Quality display, pick any mesh metric and the graph that opens up has a number of bars, segregated by element shape. Click on the bar labeled Tetrahedral and you will see which elements are SOLID187.
  
  There is a degenerate form of the SOLID186 which is also a Tetrahedral shape. Not sure how you tell them apart.
  
  You can't change a Tetrahedral element into a Hexahedral element because they are different shapes.
  
  If you can see a way to divide the volume up into six sided pieces, then you might be able to remove some tetrahedral elements.
  
  Why do you think it is necessary to get rid of the SOLID187 elements from your mesh?
- June 27, 2019 at 2:22 pm
  
  mekafime
  Subscriber
  
  Hi Peter
  
  I thought that if all the elements are solid186 I could have finer results in my model. Thanks!

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