6. 6 Conclusion

The Code_Aster command RECA_WEIBULL allows you to calibrate the parameters of the WEIBULL [U4.82.06] model.

As input to this command, the user gives the result concepts associated with the various nonlinear calculations performed. The possible dependence of the cleavage stress on temperature is implicitly specified when different temperatures are associated with each of these result concepts (if all these temperatures are the same or if they are not specified, there is no temperature dependence of this parameter).

The user can perform this adjustment using the maximum likelihood method (METHODE: “MAXI_VRAI”) or the linear regression method (METHODE: “REGR_LIN”).

The quantities determined by the command RECA_WEIBULL are reported in a table in which we find the value of the identified parameters, the rupture probabilities estimated from the experimental results as well as the theoretical failure probabilities calculated with the identified parameters.