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Is it possible to do forming simulation by using both implicit and explicit method in the same run?

Yes, it is possible to do forming simulation by using both implicit and explicit methods for the same run.

In LSDYNA3D, there is a new feature-switch the calculation from implicit to explicit method or from explicit to implicit.

Switching from explicit to implicit method will help to correct the error resulting from large dynamic effect; and switching from implicit method to explicit method will help to get a converged solution. When implicit method is used, sometimes it is difficult to get a converged solution, and at this time we can use explicit method to overcome this convergence difficulty