ABAQUS Volume II: I–Z - Manual (Page 463)

*STATIC
3. Minimum time increment allowed. Only used for automatic time incrementation. If
ABAQUS/Standard finds it needs a smaller time increment than this value, the analysis is
terminated. If this entry is zero, a default value of the smaller of the suggested initial time
increment or 10
−5
times the total time period is assumed.
4. Maximum time increment allowed. Only used for automatic time incrementation. If this value
is not specified, no upper limit is imposed.
Data line for the Riks method:
First (and only) line:
1. Initial increment in arc length along the static equilibrium path in scaled load-displacement
space, . If the DIRECT parameter is used, this value will be used as a constant arc length
increment. If this entry is zero or is not specified, a default value that is equal to the total arc
length of the step is assumed.
2. Total arc length scale factor associated with this step, . If this entry is zero or is not
specified, a default value of is assumed.
3. Minimum arc length increment, . If this entry is zero, a default value of the smaller of
the suggested initial arc length or 10
−5
times the total arc length is assumed.
4. Maximum arc length increment, . If this value is not specified, no upper limit is imposed.
5. Maximum value of the load proportionality factor, . This value is used to terminate the
step when the load exceeds a certain magnitude.
6. Node number at which the finishing displacement value is being monitored.
7. Degree of freedom being monitored.
8. Value of the total displacement (or rotation) at the node and degree of freedom that, if crossed
during an increment, ends the step at the current increment.
18.31–3
ABAQUS Version 6.1 Module: ID:
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