-
From the Procedures section of the action bar,
click Implicit Dynamic Step
 .
- Optional:
Enter a descriptive Name.
-
In the Step Time field, enter the duration of the step.
-
From the Application options, specify one of the following
options:
| Option | Description |
|---|
| Default |
Modifies the behavior of the implicit dynamic step depending on the presence of
contact in the model. Analyses involving contact are treated as moderate dissipation
applications; analyses without contact are treated as transient fidelity
applications. |
| Transient fidelity |
Small time increments are used, and numerical energy dissipation is kept at a
minimum. |
| Moderate dissipation |
Some numerical energy dissipation is introduced to reduce solution noise and
improve convergence behavior without significantly degrading solution accuracy.
|
| Quasi-static |
Large time increments are taken when possible, and considerable numerical
dissipation might be introduced to obtain convergence during certain stages of the
loading history. |
-
Adjust any of the following incrementation parameters:
| Option | Description |
|---|
| Maximum number of increments |
Maximum number of increments in the step. A value of 100 is
prepopulated. |
| Initial time increment |
Suggested initial time increment. For implicit integration, this same time
increment will be used throughout the step unless contact impacts or releases occur or
the automatic time incrementation scheme is used.
|
| Minimum time increment |
Minimum time increment allowed. A value of 10-5 seconds is
prepopulated. If the Abaqus solvers need a smaller time increment than this value, the analysis is terminated.
|
| Maximum time increment |
Maximum time increment allowed.
|
- Optional:
Enable Include geometric nonlinearity to indicate that
geometric nonlinearity will be accounted for during the step.
Once you enable this option, it will be active during all subsequent steps in the
simulation.
-
From the Matrix storage options, specify one of the following
options for the matrix storage and solution scheme:
| Option | Description |
|---|
| Solver default |
Uses a matrix storage and solution scheme chosen by the Abaqus solvers to store the stiffness matrix. |
| Symmetric |
Uses the symmetric matrix storage and solution scheme to store the stiffness
matrix. |
| Unsymmetric |
Uses the unsymmetric matrix storage and solution scheme to store the stiffness
matrix. |
For more information about these options, see Matrix Storage and Solution Scheme in Abaqus/Standard.
-
Click OK.
|