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VARIABLE MASS SCALING
Required, mutually exclusive parameters if the DT parameter or the TYPE=ROLLING parameter
is used:
FREQUENCY
Set this parameter equal to the frequency, in increments, at which m ass scaling calculations are to
be perform ed during the step. For example, FREQUENCY=5 will scale the mass at the beginning
of the step and at increments 5, 10, 15, etc. The value of this param eter must be a positive integer.
NUMBER INTERVAL
Set this param eter equal to the number of intervals during the step at whichmass scaling calculations
will be performed. For exa mple, if NUMBER INTERVAL=2, mass scaling calc ulations will be
performed at the beginning of the step, the increment immediately following the half-wa y point in
the step, and the final increment in the step.
Required parameters for TYPE=ROLLING:
CROSS SECTION NODES
Set this parameter equal to the number of nodes in the cross-section of the workpiece. Increasing
this value will decrease the amount of mass scaling used.
EXTRUDED LENGTH
Set this param eter equal to the average element length in the rolling direction.
FEED RATE
Set this parameter equal to the estimated average velocity of the workpiece in the rolling direction
at steady-state conditions.
There are no data lines associated with this option.
21.1–2
ABAQUS Version 6.1 Module:
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