Ansys 2D Workbench Simulation: Symmetry & Convergence

AI Thread Summary
In a 2D Ansys Workbench simulation involving nonlinear analysis due to frictionless contact, the user successfully utilized symmetry to reduce computation time and achieve convergence. However, attempts to simulate the entire body resulted in failure, raising questions about the relationship between symmetry and convergence. It was suggested that while symmetry aids in computation, it may also simplify boundary conditions, which are crucial for accurate results. The discussion emphasizes the importance of ensuring that boundary conditions in the full model accurately reflect those of the symmetric case. Properly addressing these boundary conditions is essential for achieving convergence in the complete simulation.
Mohamed_Wael
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I am doing a 2D Ansys workbench simulation ,it is nonlinear simulation due to frictionless contact, there is symmetry in the shape so I used the symmetry option to reduce the computation time and it succeeded to converge after that I tried the simulation of the whole body but it always fails ! I think this is strange because as far as I know the symmetry only reduces the computation time and has nothing to do with the convergence, Am I mistaken ?
 
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The symmetry condition may also simplify your boundary conditions, because deformation results also have to be symmetric. You should take a hard look at your boundary conditions for the full model and make sure they correctly replicate the boundary conditions of your symmetric loading case.
 
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