Buffering Performance of High-Speed Impact Space Penetrator with Foam-Filled Thin-Walled Structure

Table 2

Material parameters of soil.

ρ (t/mm^3)	K (MPa)	G (MPa)	DAMLEV	EPSMAX
2.4e − 9	35	1.87	0.5	0.5

K is the bulk modulus, G is the shear modulus, DAMLEV represents the level of damage that results in element deletion, and the EPSMAX is the maximum principle failure strain.