Investigation of Shock Initiation in Covered Charges under Shock Wave and Fragment Impacts

Table 4

Comparison of simulation results and theoretical models.

Gradient (°)	Detonation distance (cm)	Attenuated pressure P1 (MPa)		Reflective pressure P2 (MPa)		Superimposed pressure Pd (MPa)		Explosive interface pressure Pe (MPa)		Error of interface pressure (%)	Reaction time ()
		Theoretical results	Simulation results	Theoretical results	Simulation results	Theoretical results	Simulation results	Theoretical results	Simulation results		Simulation
10	10	10.72	12.12	78.34	86.54	240.89	270.74	481.78	538.25	10.48	2.0
20	10	10.72	12.12	70.65	74.13	216.68	250.44	433.36	496.75	12.75	2.4
30	10	10.72	12.12	58.70	62.68	177.35	206.87	354.70	408.44	13.15	3.6
40	10	10.72	12.12	43.81	51.26	131.60	163.26	263.20	318.46	17.37	6.2
45	10	10.72	12.12	35.76	42.35	111.39	142.14	222.78	269.87	17.43	8.8
50	10	10.72	12.12	27.82	31.22	83.48	103.25	166.96	201.48	17.10	16.0