ANSYS Explicit Dynamics

Explicit dynamic in ANSYS use the explicit time integration method (central difference method) which is comparable to the implicit time integration method used in transient structure simulations. Explicit dynamic analysis is suitable for high speed, and highly non-linear problems. For explicit method the time step must be smaller than a threshold which depends on the minimum element size of the generated mesh or the order of the element. However when using the implicit method, the time step value becomes purely out of the accuracy considerations.  Movie available on YouTube:

When using explicit dynamic analysis in ANSYS you will require very small time increments since there is no convergence feedback during each calculated time step like what is available in the implicit solver. Therefore as long as you have good material models (that include strain rate sensitivity and other speed dependent adjustments) and boundary conditions, pre-processing an explicit analysis is not much different than that of an implicit analysis., Movie available on YouTube:

Under Construction, Movie available on YouTube:

One of the best online tutorials using Explicit Dynamics

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