I am getting convergence issues and also unrealistic force values for a non-linear implicit run. The same runs properly in explicit solver and the objective is compare the results.
When the time step is smaller than the input minimum one (see /IMPL/DT/STOP), RADIOSS will stop the run with this message. Please go through the Help Menu on this which gives general workarounds possible.
As a note, implicit solution is RADIOSS is more to complement the Explicit Solution. So we suggest to use it only for specific cases like Spring Back. For other generic Implicit Non-linear cases, it is always recommended to use OptiStruct.
Hi Gopal,
The run is stopping due to Istop=-2 error.
When the time step is smaller than the input minimum one (see /IMPL/DT/STOP), RADIOSS will stop the run with this message. Please go through the Help Menu on this which gives general workarounds possible.
As a note, implicit solution is RADIOSS is more to complement the Explicit Solution. So we suggest to use it only for specific cases like Spring Back. For other generic Implicit Non-linear cases, it is always recommended to use OptiStruct.