General Mechanical

General Mechanical

Topics relate to Mechanical Enterprise, Motion, Additive Print and more

Fluid pressure penetration can’t converge

    • MC Cao

      Hi, I need your help guys.

      I tried to use APDL to apply pressure penetration(70MPa) for the rubber. The analysis contains 4 steps. The rubber is firstly compressed in 3 steps. APDL is applied in the last step. 

      The fisrt 3 steps can converge.

      However, the last steo can't converge.

      The screen shots are listed.











    • Akshay Maniyar
      Ansys Employee

      Hi MC cao,

      I looked over the screenshots you had included. It appears to be experiencing element distortion. Could you verify the elements at which location are distorted and also check for Newton-Raphson residual plots? Is it at the contact face or the face where the pressure is applied? Please check the below video which discusses various solutions related to element distortion.

      How to Handle Element Distortion Errors in Hyperelastic Materials — Lesson 3 - ANSYS Innovation Courses


      Akshay Maniyar

Viewing 1 reply thread
  • You must be logged in to reply to this topic.