Damage Identification in Structures Based on Energy Curvature Difference of Wavelet Packet Transform

Table 2

Test cases for damage severity identification in Example 1.

Case No.	Damage element	Damage location	Damage level	Young’s modulus
S1	Element 9	Between node 9 and node 10	5%	210 GPa×95%
	Element 16	Between node 16 and node 17	5%	210 GPa×95%
S2	Element 9	Between node 9 and node 10	10%	210 GPa×90%
	Element 16	Between node 16 and node 17	10%	210 GPa×90%
S3	Element 9	Between node 9 and node 10	15%	210 GPa×85%
	Element 16	Between node 16 and node 17	15%	210 GPa×85%
S4	Element 9	Between node 9 and node 10	20%	210 GPa×80%
	Element 16	Between node 16 and node 17	20%	210 GPa×80%