What are "Mesh Convergence Studies"? #MODSIM Knowledge Sharing

Introduction

Mesh convergence studies in Finite Element Analysis (FEA) involve running simulations with progressively finer meshes to ensure the solution stabilizes and is accurate. These studies demonstrate that further refinement doesn't significantly alter the results. 

The goal is to achieve a mesh density where further refinement has a minimal impact on the results, indicating that the solution has "converged" to a stable and accurate solution.

 

Why is it Important?

  1. FEA solutions are approximate, and the accuracy depends on the mesh quality and density. 
  2. An insufficiently refined mesh can lead to inaccurate or unreliable results. 
  3. Mesh convergence studies ensure that the results are reliable and that the chosen mesh is adequate for the analysis. 

 

With Parametric Design Study or Process Composer we can automate the process using Either Parametric Design Study or Process Composer Apps.
 

Maximum Displacement Vs Mesh size Scatter plot on Physics Results Explorer App

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