Advances in Civil Engineering / 2010 / Article / Fig 1

Research Article

Potential of Nonlinear Ultrasonic Indicators for Nondestructive Testing of Concrete

Figure 1

Implementation of the CWI method. Solid line: reference signal. Dotted line: signal under stressed conditions. (a) Typical signals recorded on our sample. (b) Early part of the signal. (c) Portion of the coda. (d) Cross-correlation function.
238472.fig.001a
(a)
238472.fig.001b
(b)
238472.fig.001c
(c)
238472.fig.001d
(d)

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