International Journal of Aerospace Engineering / 2017 / Article / Tab 4

Research Article

Nonlinear Material Behavior Analysis under High Compression Pressure in Dynamic Conditions

Table 4

Standard deviation and relative spread using copper crusher method at 25 mm.

Test ammo #Mean of 10 fired rounds
Chamber pressure [MPa]Standard deviation [MPa]Max value [MPa]Min value [MPa]Relative spread (%)

1-NATO297.696.34308.8291.55.93
2-NATO293.66.39302.4287.25.29
3-NATO296.95.34304.5287.26.02
1-NSTD296.249.80321.2287.211.83
2-NSTD297.778.32310.8287.28.21
3-NSTD300.9311.81321.2287.211.83

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