Ansys 2D Workbench Simulation: Symmetry & Convergence

Click For Summary
SUMMARY

The discussion centers on performing a 2D simulation in Ansys Workbench, specifically addressing issues related to symmetry and convergence in nonlinear simulations involving frictionless contact. The user successfully utilized the symmetry option to reduce computation time, leading to convergence in the symmetric case. However, when attempting to simulate the entire body, convergence failures occurred. The consensus is that while symmetry aids in computation, it is crucial to ensure that boundary conditions in the full model accurately reflect those of the symmetric case to achieve successful convergence.

PREREQUISITES
  • Understanding of Ansys Workbench 2D simulation techniques
  • Knowledge of nonlinear simulation principles, particularly frictionless contact
  • Familiarity with symmetry in computational modeling
  • Comprehension of boundary condition setup in finite element analysis
NEXT STEPS
  • Review Ansys Workbench documentation on setting up boundary conditions for nonlinear simulations
  • Explore techniques for troubleshooting convergence issues in finite element analysis
  • Learn about the impact of symmetry on boundary conditions in Ansys simulations
  • Investigate advanced methods for optimizing computation time in large-scale simulations
USEFUL FOR

Engineers and analysts working with Ansys simulations, particularly those focused on nonlinear analysis and optimization of computational efficiency in finite element modeling.

Mohamed_Wael
Messages
19
Reaction score
0
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 ?
 
Engineering news on Phys.org
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.
 

Similar threads

  • · Replies 1 ·
Replies
1
Views
7K
  • · Replies 1 ·
Replies
1
Views
7K
  • · Replies 1 ·
Replies
1
Views
1K
  • · Replies 11 ·
Replies
11
Views
12K
  • · Replies 3 ·
Replies
3
Views
4K
  • · Replies 2 ·
Replies
2
Views
3K
Replies
2
Views
5K
  • · Replies 1 ·
Replies
1
Views
6K
  • · Replies 1 ·
Replies
1
Views
10K
  • · Replies 2 ·
Replies
2
Views
8K