Experimental and Modeling Studies of Stress Wave Propagation and Energy Dissipation Mechanism in Layered Composite Structures

Table 3

MAT_COMPOSITE_DAMAGE [23] constants for UHMWPE.

Constants	UHMWPE
Density (g/cm^3)	0.97
Young’s modulus in a-direction, Ea (GPa)	30.7
Young’s modulus in b-direction, Eb (GPa)	30.7
Young’s modulus in c-direction, Ec (GPa)	1.97
Poisson’s ratio, (GPa)	0.008
Poisson’s ratio, (GPa)	0.044
Poisson’s ratio, (GPa)	0.044
Shear modulus, (GPa)	0.73
Shear modulus, (GPa)	0.67
Shear modulus, (GPa)	0.67
Bulk modulus of failed material, Kfail (GPa)	2.2
AOPT	0
Material axes change flag for brick elements, MACF	1
Shear strength, Sc (GPa)	0.36
Longitudinal tensile strength, a-axis, Xt (GPa)	3.0
Transverse tensile strength, b-axis, Yt (GPa)	3.0
Transverse compressive strength, b-axis, Yc (GPa)	2.2
Shear stress parameter for the nonlinear term,	0.5
Normal tensile strength, Sn (GPa)	0.95
Tranverse shear strength, Syz (GPa)	0.95
Tranverse shear strength, Sxz (GPa)	0.95