Deformation and Mechanical Properties of a Constant-Friction-Force Energy-Absorbing Bolt

Table 1

Tensile test results of the EACF bolt.

Types of EACF bolts	Diameter of the straight section of the damping block (mm)	Straight line length of the damping block (mm)	Average constant-friction force (kN)	Constant displacement (mm)	Absorbed energy (J)
BG-1	38	20	60	39.4	3806
BG-2	38	25	63	39.2	4407
BG-3	38	30	67	39.6	5215
BG-4	38.5	20	72	39.7	4687
BG-5	38.5	25	75	39.7	5064
BG-6	38.5	30	78	39.8	5746
BG-7	38.7	20	80	39.6	5116
BG-8	38.7	25	83	39.8	6097
BG-9	38.7	30	87	39.5	7340