Research on Numerical Simulation of Tantalum Explosively Formed Projectile Forming Driven by Detonation

Table 2

JC constitutive characteristic parameters of tantalum.

Number	A (MPa)	B (MPa)	n	C	m	Tm (K)	Tr (K)		Reference
1	220	520	0.325	0.0550	0.475	3250	298	10^–3	[15]
2	340	750	0.7	0.0575	0.4	3250	298	10^–3	[15]
3	185	675	0.300	0.0470	0.425	3250	298	10^–3	[15]
4	800	550	0.4	0.0575	0.44	3293	(298)	(10^7)	[10]
5	611	704	0.608	0.015	0.251	3250	(298)	10^7	[16]
6	342.4	263.5	0.3148	0.057	0.8836	3269	298	4 × 10^−4	[17]
7	204	147	0.8	0.093	0.4	3123	296	10^–4	[18]
8	410	410	0.2	0.1	0.6	3269	298	10	[19]
9	187	267	0.38	0.054	0.45	3269	298	10^–3	[20]