METHOD FOR MODELLING NON-DESTRUCTIVE TESTING STRUCTURES

摘要

Method for modelling a structure for non-destructive testing by a leak detector of a part (6) to be tested, comprising the following steps: modelling the flux induced in a structure without a defect, in order to determine Xa associated with the magnetic field in a section of the structure A; determining the action of XA on the box of interest B by considering the two-dimensional contribution Xa and a three-dimensional domain C obtained by extrusion of the domain of interest; determining XC associated with the magnetic field in the domain C; assimilating XC with the formula (I) corresponding to that of the section of interest without a defect; modelling the response of B without a defect by a three-dimensional approach and deducing the contribution of B on the detector D; determining YD received by the detector (5) by summing the contributions Xa of the section a and XC of domain C excluding B on the detector, the contribution of B and the contribution of the excitation system (3, 4).