| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 732459 | Optics & Laser Technology | 2012 | 6 Pages |
A numerical model based on the finite element method (FEM) is developed for crack inspection using laser-induced ultrasonic waves with the shadow method. Before the simulation, the numerical code is verified by comparing the directivity patterns of ultrasonic waves with the experiment. The use of thermo-elastically generated ultrasonic waves for crack detection and evaluation with the shadow method is investigated by simulation. The simulation is validated by comparing with the experiment.
► A numerical model is developed for crack inspection with laser ultrasonic. ► The possibility of the “inner” crack inspection with thermo-elastic waves is investigated. ► The crack at the rear side of the specimen was detected and evaluated by shadow method.
