Requesting Output in Multiple Steps

Output requests apply to the step in which they are defined and to all subsequent steps until they are respecified.

This page discusses:

See Also
About Output
In Other Guides
*OUTPUT
Understanding output requests

ProductsAbaqus/StandardAbaqus/ExplicitAbaqus/CAE

The only exception occurs when the step type changes from general to linear perturbation (available only in Abaqus/Standard). Output requests defined in general steps apply only to subsequent general steps; output requests defined in linear perturbation steps apply only to subsequent consecutive linear perturbation steps. In other words, output defined in a general step is independent of output defined in a linear perturbation step. Propagation between linear perturbation steps occurs only for consecutive linear perturbation steps. If a general analysis step occurs between perturbation steps, output defined in the first perturbation step will not propagate to the next perturbation step.

In any given step you can add or selectively replace the output requests that are continued from previous steps. Alternatively, you can discontinue all requests from previous steps and request a completely new set of output. The preselected field variables and preselected history output variables (see Preselected Output Requests) are requested by default for the first step of an analysis; you can modify this request as in any other step.

Specifying New Output Requests

By default, all output requests defined in previous steps are removed when new requests are defined, regardless of the type of output request being defined. In other words, a new field output request in a step removes all field and history output requests defined in previous steps.

Because all existing output requests are removed when a new request is defined in a step, all output requests within the same step are treated as new (i.e., additional output requests or replacement output requests are treated as equivalent to new output requests).

Input File Usage

Use one of the following options to remove all existing output requests and to specify new requests:

OUTPUT, FIELD, OP=NEW
OUTPUT, HISTORY, OP=NEW

Abaqus/CAE Usage

Step module: Create Field Output Request or Create History Output Request

Abaqus/CAE automatically respecifies all previously defined output requests when you create a new request.

Specifying Additional Output Requests

Alternatively, you can specify additional output requests without removing all default and previously defined output requests.

Input File Usage

Use one of the following options to specify additional output requests without removing all default and previously defined output requests:

OUTPUT, FIELD, OP=ADD
OUTPUT, HISTORY, OP=ADD

Abaqus/CAE Usage

Step module: Create Field Output Request or Create History Output Request

Abaqus/CAE automatically respecifies all previously defined output requests when you create a new request.

Replacing or Removing an Output Request

You can replace an output request of the same type (e.g., field or history) and frequency with a new request. No other previously defined requests will be affected.

You cannot replace an output request to change its frequency. If no matching request is found, the request specified is simply added to the step.

To remove a previously defined request, you can replace the output request without specifying any new output variables.

Input File Usage

Use one of the following options to replace an output request with a new request:

OUTPUT, FIELD, OP=REPLACE
OUTPUT, HISTORY, OP=REPLACE

Abaqus/CAE Usage

Step module: Field Output Requests Manager or History Output Requests Manager: Edit or Delete

Suppressing Output Requests Defined in Previous Steps

To suppress completely all output requests that have been defined in previous steps, you can specify an output frequency of 0.