A New Flexibility Based Damage Index for Damage Detection of Truss Structures

Table 1

Five different damage cases induced in 31-bar planar truss.

Case 1		Case 2		Case 3		Case 4		Case 5
Element number	Damage ratio	Element number	Damage ratio	Element number	Damage ratio	Element number	Damage ratio	Element number	Damage ratio
11	0.25	16	0.30	1	0.30	13	0.25	6	0.20
25	0.15	—	—	2	0.20	30	0.2	15	0.25
—	—	—	—	—	—	—	—	26	0.30