Vulnerability Analysis of Catenary-Bridge-Track System

Table 3

Damage state assessment of fastener (unit: mm).

Damage state	Zero damage	Minor damage	Moderate damage	Severe damage	Complete damage
Displacement	0 ≤ d < 2	2 ≤ d < 3	3 ≤ d < 4	4 ≤ d < 5	d ≥ 5