You can try like this using Static or Transient Dynamic state considering that the load application is Displacement approach:
- Using *BOUNDARY_PRESCRIBED_MOTION_SET if Displacement apporach (input load as Displacement vs Time). In this approach, you can extract the REACTION FORCES for either a set of nodes or if using an Impactor, you can extract the contact force to see the output FORCE needed for that APPLIED DISPLACEMENT
- Using *LOAD_NODE_SET if Force approach (input load as Force vs Time)
In both cases, you can assign a load curve which you are defining using *DEFINE_CURVE.
Once the model is stable and working as you require, you can further model another load step using both the options.
Please let me know once you tried these options. Hope this will help you.