Modeling Large Deformation and Failure of Expanded Polystyrene Crushable Foam Using LS-DYNA

Table 1

Effects of strain rate on yield stress, Young’s Modulus, and absorbed energy.

Strain rate	Yield stress	Young’s Modulus	Absorbed energy
(s^−1)	(MPa)	(MPa)	(J)
0.00833	0.020	0.8	104.89
0.04167	0.035	1.4	118.95
0.08333	0.055	2.2	135.06