Wireless Power Transmission for Structural Health Monitoring of Fiber-Reinforced-Composite Materials

Piezoelectric Transducers Assessed by the Pencil Lead Break for Impedance-Based Structural Health Monitoring

“…The main fields of application include civil infrastructures, such as bridges [5] and pipes [6], and aircraft structures [7]. Metal and concrete structures have been a particular focus in the literature, but in recent years, increasing interest has arisen in composite materials, which are commonly used in aircrafts [8].…”

“…Substituting the values shown in Table I and the dimensions of the PZT patch and the specimens presented in Section IV into (1) and (7), we obtain the sensitivity of the PZT patch (η(ω)) given by (8) as a function of frequency for the narrow and wide beams. The results are shown in Fig.…”

Wireless actuation of piezo-elements for the structural health monitoring of carbon-fiber-reinforced-polymers

“…In [15] different tests to validate the influence of CFRP on the transmission are carried out. First, a unidirectional laminate was cut into small square pieces and placed on top and bottom of the receiver, sealing it in order to observe the effect on the coupling at different distances between coils.…”

Inductive wireless sensor-actuator node for structural health monitoring of fiber reinforced polymers by means of Lamb-waves

“…Possible approaches include glue or binders and the use of sewing techniques (tailoring) as explained in the previous section. No matter how coils may be put on the plate it should be consider that the quality of the receiver antenna will be damped to about half the value given on a free space measurement and depending on the frequency used a shift in resonance might occur [6].…”