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