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This command is used to construct a ModifiedNewton algorithm object which uses the Modified Newton-Raphson method to advance to the next time step. The difference between this method and the Newton-Raphson method is that the tangent stiffness is not updated at each step, thus avoiding expensive calculations needed in multi-DOF systems. However, more iterations may be needed to reach a prescribed accuracy.
algorithm ModifiedNewton
NOTE: The tangent at the first iteration of the current time step is used to iterate on the next time step.
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