Extending the domain of definition
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Material properties are defined in the absence of the keyword EXTRACTION by temperature functions whose domain of definition is strict (equivalent to an extension EXCLU).

Sometimes during iterations of problem solving (in the case of thermal shock for example), properties are evaluated outside this domain. This leads to the stopping of the calculation.

The user can then choose to authorize the extension, constant or linear, of the functions to the left and/or to the right of the domain of definition. He must then ensure that the results are valid and in particular that the values of the convergence temperature are within the initial limits.

PROL_GAUCHE (resp. PROL_DROITE) allows you to define the type of extension to the left (resp. to the right), i.e. for values that are lower (or higher) than the domain of definition.

In this case, all functions are extended in the same way.

It is possible that some materials do not allow the extension.