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Other Options

When simulations unexpected fail, the modeling can sometimes be improved by involking some advanced options. Some available options are listed below.

Incremental Deformation Gradient

The incremental deformation gradient in each time step can be extend in a series of terms. By default, 2D simulations use 2 terms while 3D use 1 (for efficiency). Some problems, especially highly-dynamic ones, can be improved by using more terms. The details are given on OSUPDocs.

Restarting Time Steps

Sometimes nodes get accelerations that are too high and are difficult to fix by other means, typcially only in highly-dynamics simulations. This issue can sometimes be fixed by allow time steps with high nodal accelerations to restart with a smaller time step. The details are given on OSUPDocs.