General Mechanical

General Mechanical

Problem with changing the SOLID187 to SOLID65 for concrete component

    • Joseph Lim
      Subscriber

      Dear community,


      I having a problem with changing the SOLID187 to SOLID65 for a concrete component.


      I had tried using the following command:


      et,matid,solid65


      MP,Ex,matid,1500


      MP,Prxy,matid,0.2


      MP,Dens,matid,2400e-9


      TB,concr,matid


      tbdata,1,0.3,1,0.304,4.27


      and then change Element Control to Manual.


      However, the command hasn't worked and an error occurs (Element type 1 is not the same shape as SOLID65). It shows SOLID187 is used in the solution information.


      Any advice on this problem?


      Thank you very much in advance for your help and time.

    • sk_cheah
      Subscriber

      Hi Yong Tat,

      Specifying SOLID65 in the command snippet doesn't command Workbench to use lower order hexahedral elements. Firstly, in Mesh Details Defaults, specify Element Order as Linear to remove mid-side nodes.


      Secondly,  If your geometry is sweep-able, try inserting a "Sweep Method" object and set the Free Face Mesh Type as All Quad. Otherwise you could try inserting "Hex Dominant Method" mesh object with Free Face Mesh Type as All Quad. The goal is to have only hex elements.

      Hopefully this helps


      Kind regards,
      Jason

    • peteroznewman
      Subscriber

      Hi Yong Tat,


      Another approach to concrete modeling is to use the SOLID187 or 185 elements with a Microplane material model. This is far superior to the SOLID65 and CONC models used in the past as described in the abstract attached to this comment.


      Kind regards,
      Peter

    • Ashish Khemka
      Ansys Employee

      Just an additional comment - Change the element control to Manual one from Program Controlled.

    • Joseph Lim
      Subscriber

      Hi Jason,


      Thank you so much for your help.


       


      Regards,


      Joseph

    • Joseph Lim
      Subscriber

      Hi Peter,


      Thank you so much for your suggestion.


       


      Regards,


      Joseph

    • Joseph Lim
      Subscriber

      Hi akhemka,


      Thanks for the additional suggestion.


       


      Regards,


      Joseph

    • SriVin
      Subscriber

      where is do we change that control, can you please elaborate.


      Thank you

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