Efficient Transient Analysis for Large Locally Nonlinear Structures

gardless of the size of the (linear) portion of the model, the motivation exists for the development of a solution method which isolates the nonlinearities, thereby preserving the linearity of the bulk of the model for an efficient linear solution prior to (repeated) nonlinear design analyses. It is also desirable that such a solution procedure not require all model degrees-of-freedom (DOF) to be retained in the analysis; the solution procedure should require only those DOF directly associated with the nonlinear portions of the model.