Ansys Mechanical can solve a variety of complex real-world mechanical problems. But how do you determine the accuracy of the solution? Is there a rule to determine the level of accuracy? In this video, we will answer these questions using adaptive convergence. It helps users discover mesh-independent solutions so the results don’t change noticeably with further mesh refinement. This can help define better mesh controls for future models to ensure numerical accuracy.

1:22 – Definition of Adaptive Convergence

2:08 – Definitions of Relative Accuracy and Relative Error

3:20 – Difference between Adaptive Convergence and Convergence in Solving a Nonlinear Problem

6:21 – Using Adaptive Convergence

7:47 – Defining Allowable Change for Adaptive Convergence

8:15 – Defining Refinement Depth

9:04 – Defining Max Refinement Loops

9:25 – Procedure for Adaptive Convergence

10:51 – Using Adaptive Convergence for Stress Results on a Specified Region

11:58 – Definition of Stress Singularities

12:21 – Resolving Stress Singularities for Adaptive Convergence

13:45 – Factors that Influence Analysis Accuracy

Download the accompanying geometry and archived project file used in the video lesson **here**. Download Ansys Student for free **here**.