Crack Propagation Analysis Using Acoustic Emission Sensors for Structural Health Monitoring Systems

Table 1

Example data sets of histogram values and respective crack growth sizes. Time listed is for the start of the time window.

Time (sec)	Histogram values	Crack growth present (“yes,” “no”)	Crack growth size (in.)
381.80	0 0 0 1 0 0 1 0 0 0	0 1	0
383.40	0 0 1 2 1 0 0 0 0 0	0 1	0
391.40	16 7 4 7 0 1 0 0 0 0	1 0	0.1495
396.20	9 4 1 3 1 2 0 0 0 0	1 0	0.0299