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*ADJUSTW

Data format :

A single line with a minimum of 5 values. The line may be continued using the & character.

APPWINI APPWFIN NB_ETAP NB_GRP IGR1 IGRI

Status :

Optional

Purpose :

To adjust the apparent weight of elements during quasi-static steps (before a dynamic analysis)

Details :

Parameter Description
APPWINI Initial apparent weight of elements of groups IGR1, IGRI
APPWFIN Final apparent weight of elements of groups IGR1, IGRI
NB_ETAP Number of quasi-static steps to modify the apparent weight
NB_GRP Number of involved groups
IGR1 ... IGRI List of involved groups

Restrictions :

The selected elements must be previously defined. All elements have the same initial apparent weight

Note

If several ADJUSTW are defined, the number of steps to modify the elements apparent weight is the maximum of the NB_ETAP defined in the different keywords. During all quasi-static steps, the convergence is ensured even if convergence criteria are not respected.

Example :

*ADJUSTW
100 500 20 2 1 2

Elements of groups 1 and 2 have an initial apparent weight of 100N/m. This apparent weight will be adjusted to 500N/m during 20 steps.