Behavior ELAS

Definition

In the general case, it is not necessary to assign elastic behavior to the discrete. The STAT_NON_LINE operator does this assignment by default on all the cells in the model. This assignment is then overloaded when the COMPORTEMENT keyword is processed.

On the other hand, if a discrete is affected by a temperature and we want to take into account thermal expansion (only for a « DIS_TR_L »), it is necessary to define the expansion coefficient \(\alpha\) and this is done by the definition of an elastic material. It is therefore necessary to define \(ALPHA=\alpha\), the keyword E is mandatory but its value will not be taken into account.

The resulting move is \(\delta_u = \alpha*(T-T_{ref})*L\).

The corresponding effort is \(F_x = K_x*\delta_u\).

Note:

Unlike other behaviors that exist on discretes, length has a meaning.

Internal variables

This behavior has no internal variables.