This dialog is used to specify the settings for the solver parameters of a large deflection Stress/Warp analysis.
To access this dialog, ensure that you have selected an analysis sequence that includes
Warp or
Stress, click
(), if necessary click
Next one or more times to navigate to the
Warp Settings or
Stress Settings page of the Wizard, set the
Warpage analysis type or
Stress analysis type option to
Large deflection, then click
Solver parameters.
Note: All solver parameters have a default value that will be suitable for most analyses.
| Dialog element | Explanation |
|---|---|
| Apply imperfection to model to assist convergence | If you have previously run a large deflection analysis that failed due to convergence problems, then applying an imperfection to the model may resolve the problem. |
| Relative convergence tolerance | Set the solution convergence target for the iterative numerical solution. Lower values may produce more accurate solutions, but will increase computation time. |
| Maximum number of load incrementation steps | Enter the upper limit of loading increments (steps) that the program can take in the nonlinear analysis. |
| Maximum load factor | A fractional value less than one indicates how much of the complete shrinkage strains should be applied. Using values less than one might be useful to understand the deflection shape, even if convergence cannot be achieved with the full shrinkage loading. |
| Maximum load factor increase per step | A large deflection analysis progressively applies the shrinkage loading in steps. This parameter controls the maximum increment of these loading steps. |
| Maximum number of iterations per step | This option specifies a limit on the number of equilibrium iterations that the solver performs in each step of the nonlinear analysis. |
| Output stress results at | Controls the load steps at which results are available. |
| Load incrementation method | Various schemes are available in the solver for determining the progression of the incremental load steps. |
| Reconstruct stiffness matrix | Specifies the initial solution strategy to be used in the nonlinear analysis. |