Back to Piezoelectric Devices  |  Previous paper  |  Next paper

Nondestructive Testing of Composites Using Model Based Design

E. Nesvijski1

Preliminary FEA models of specimens without (upper figure) and with void (lower figure) showing propagation of ultrasonic pulse.

There is a practical interest among composite materials manufacturers to high-speed accurate non-destructive evaluation (NDE) technology for voids inspection when these voids are natural components of such complex structures like resin insulated layer of double-sided copper-clad laminates. Model based design (MBD) of NDE system is one of principal solutions for voids inspection in such composites [1-4]. This work presents a MBD approach to voids inspection based on MEMS high frequency ultrasonic transducers with dry point coupling extensions [5-7], finite element analysis (FEA) of waves propagation through complex structures by COMSOL, modern digital signal processing (DSP) and artificial intelligence (AI) tools together [8-10].

Share it on Social Media: