Convergence problems in finite element (FE) analysis

Convergence problems in finite element (FE) analysis usually happen because of mistakes in the model. Some common reasons are:

• Incorrect or conflicting boundary conditions and constraints.

• Improperly defined contact conditions, which can make it hard for Abaqus to solve contact interactions.

• Using the wrong type of elements for the analysis.

• Entering incorrect or unrealistic material properties.

• Modeling a system that is physically unstable.

• Choosing an unsuitable increment size, which can affect the solver’s ability to reach a solution.