5.6. integrator commands

integrator(intType, *intArgs)

This command is used to construct the Integrator object. The Integrator object determines the meaning of the terms in the system of equation object Ax=B.

The Integrator object is used for the following:

• determine the predictive step for time t+dt
• specify the tangent matrix and residual vector at any iteration
• determine the corrective step based on the displacement increment dU

intType (str)	integrator type
intArgs (list)	a list of integrator arguments

The following contain information about available intType:

5.6.1. Static integrator objects

1. LoadControl
2. DisplacementControl
3. Parallel DisplacementControl
4. Minimum Unbalanced Displacement Norm
5. Arc-Length Control

5.6.2. Transient integrator objects

1. Central Difference
2. Newmark Method
3. Hilber-Hughes-Taylor Method
4. Generalized Alpha Method
5. TRBDF2
6. Explicit Difference
7. PFEM integrator