7.3 Impact Test on NP450 Armor Steel/UHPCC and NP500 Armor …
225
Fig. 7.42 Dynamic yield strength data and the fitting curves of a NP450 and b NP500 armor steels
Figure 7.42 further shows the experimental dynamic yield strength data under
different strain rates, as well as the fitting curves by Eq. (7.6). C = 0.013 for NP450
armor steel and C = 0.0368 for NP500 armor steel are determined.
As shown in Figs. 7.43 and 7.44, the quasi-static tension test for NP450 and
NP500 armor steels under varying temperatures were conducted on 300 kN high
temperature electronic material test system with the displacement loading speed
Fig. 7.43 Test specimen a photograph b dimensions
Fig. 7.44 Quasi-static tension test of armor steel materials under high temperature a arrangement
of thermocouples b temperature control system c high temperature furnace and arrangement of
extensometers
225
Fig. 7.42 Dynamic yield strength data and the fitting curves of a NP450 and b NP500 armor steels
Figure 7.42 further shows the experimental dynamic yield strength data under
different strain rates, as well as the fitting curves by Eq. (7.6). C = 0.013 for NP450
armor steel and C = 0.0368 for NP500 armor steel are determined.
As shown in Figs. 7.43 and 7.44, the quasi-static tension test for NP450 and
NP500 armor steels under varying temperatures were conducted on 300 kN high
temperature electronic material test system with the displacement loading speed
Fig. 7.43 Test specimen a photograph b dimensions
Fig. 7.44 Quasi-static tension test of armor steel materials under high temperature a arrangement
of thermocouples b temperature control system c high temperature furnace and arrangement of
extensometers