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ULTRASONIC WAVE PROPAGATION SIMULATION TO DETECT CRACKS IN CONCRETE STRUCTURES USING FEM

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Figure 1 – Schematic representation of the models used for wave propagation analysis: (a) uncracked beam; (b) beam with crack tip at 57 mm above the bottom; (c) beam with crack tip at
Figure 3 – Time responses determined for the receivers positioned at the top, for the uncracked beam using damping: a) 0.5 %, b) 1 %, c) 2 % and d) 5 %
Figure 4 – Time responses determined for the receivers positioned at the top of the beam, for the cracked beam with crack tip at 1) 57 mm and 2) 40 mm above the bottom, for frequencies a)
Table 1 – Time-of-flight of receivers A and B

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