PSI - Issue 5

Baris Arslan et al. / Procedia Structural Integrity 5 (2017) 171–178 Baris Arslan et al. / Structural Integrity Procedia 00 (2017) 000 – 000

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Concrete groups which have aggregate sizes 19, 38 and 76 mm are named A19, A38 and A76 respectively, in order to avoid confusions.

Fig 3.a Free PZT patch impedance results

Fig 3.b A19 impedance results

Fig. 3.c A38 impedance results

Fig. 3.d A76 impedance results

Fig. 3. a,b,c,d Free PZT patch and concrete groups impedances

First peak point of the free PZT patch occured around 1200 Hz, and the second is around 10500 Hz. Resonance and antiresonance values could be seen easily as shown in Fig.3.