General Mechanical

General Mechanical

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Contraction – connection line

    • Giorgia Prosperi
      Subscriber

      Hi! 

      I'm trying to make the contraction of this (flexible) pill-structure with two symmetrical plins (rigid bodies).
      To generate the contraction I'm imposing an ambient temperature of 0 and applying a temperature decrease from 0 to -T_final.
      The problem I am having is at the joining line of the structure/geometry. Although I have inserted a bounded contact between the geometries, I seem to see inconsistencies in the connection line up to a separation of the parts.

       

      First stress distribution:

       

      Final stress: 

      How could i solve this problem?

      Thank you,

      Giorgia 

    • Saurabh Patil
      Ansys Employee

      Hi 

      1. Try checking if you have proper edge contact by selecting the Display tab>> Edge >> By Connection.   
      2. If you have a shell model with 2D elments you can ensure proper connection by using shared topology instead of contact definition.You can perform shared topology between the edges from Spaceclaim in Workbench tab. 

      Regrads

      Saurabh

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