Dynamic Mechanical Characteristics and Constitutive Modeling of Rail Steel over a Wide Range of Temperatures and Strain Rates

Figure 4

Experimental setup for dynamic tests. (a) Schematic of the SHPB equipment with a synchronously assembled heating system (, , and refer to strain signals from incident waves, reflected waves, and transmitted waves, respectively). 1, nitrogen gas gun; 2, inlet valve; 3, air chamber; 4, barrel; 5, striker bar; 6, incident bar; 7, strain gauge; 8, specimen; 9, heating furnace; 10, transmitted bar; 11, energy absorption bar; 12, bar mover; 13, support; 14, air pipe; 15, magnetic outlet valve. (b) Detailed configuration of the sample fixed during the high-temperature dynamic test.

(a)

(b)