This option is used to specify the rendezvousing scheme for co-simulation. It must be used in conjunction with the *CO-SIMULATION option to identify the analysis program for which the co-simulation controls are specified. This option is not required for co-simulation with MADYMO.
Products: Abaqus/Standard Abaqus/Explicit
Type: History data
Level: Step
Set this parameter equal to the label that will be used to identify the co-simulation controls. All co-simulation control names in the same input file must be unique.
Set this parameter equal to a value that defines the constant coupling step size to be used throughout the coupled simulation.
Set STEP SIZE=IMPORT for Abaqus to import a coupling step size from the external program for the next coupling step. This setting is only valid when used with the *CO-SIMULATION, PROGRAM=MPCCI option.
Set STEP SIZE=EXPORT for Abaqus to export a coupling step size to the external program for the next coupling step. This setting is only valid when used with the *CO-SIMULATION, PROGRAM=MPCCI option.
When you specify PROGRAM=ACUSOLVE with the *CO-SIMULATION option and you do not specify the STEP SIZE parameter, the step size is computed automatically.
When you specify PROGRAM=ABAQUS with the *CO-SIMULATION option, you can specify the STEP SIZE parameter only in the Abaqus/Explicit analysis. If you do not specify the STEP SIZE parameter, the step size is computed automatically.
Set TIME INCREMENTATION=SUBCYCLE (default) to allow Abaqus to take one or more increments to reach the next target time to exchange data with the external program.
Set TIME INCREMENTATION=LOCKSTEP to force Abaqus to use only one increment to reach the next target time.
Set TIME MARKS=YES (default) to enforce the target time in an exact manner; that is, Abaqus will temporarily cut back the increment such that the exchange occurs at the specified target time.
Set TIME MARKS=NO to enforce the target time in a loose manner. This setting is applicable only when TIME INCREMENTATION=SUBCYCLE is used.
This parameter does not apply when using the *CO-SIMULATION, PROGRAM=ABAQUS option; the target time will always be enforced in an exact manner.