Numerical Computer-Simulation of Fields and Waves in Nondestructive Testing

摘要

The emphasis of this paper is to provide an overview of the numerical computer simulation of fields and waves and its application in nondestructive testing (NDT). Several numerical methods are applied: the finite integration technique (FIT), the finite element method (FEM), the boundary element method (BEM), and the method of moments (MoM). The numerical modelling of the ultrasonic and eddy current NDT inspection technique is discussed. Similarly, the numerical computer simulation of coupled wave field problems, like the piezoelectric and the electromagnetic-ultrasonic transducer is documented. The performance of the computer simulation in nondestructive testing is presented on the basis of 3-D modelling results of the ultrasonic testing of reinforced concrete and eddy current testing of hot wire steel.