Experimental and Numerical Analysis of Nonlinear Flexural Behaviour of Lattice-Web Reinforced Foam Core Composite Sandwich Panels

Table 3

Material parameters of the GFRP face sheets.

Property	LS-DYNA parameter	Experimental value
Density	RO	1.8 g/cm^3
Modulus in longitudinal direction	EA	20.95 GPa
Modulus in transverse direction	EB	20.95 GPa
Shear modulus	GAB	2.5 GPa
Poisson’s ratio	PRBA	0.15
Tensile strength in longitudinal direction	XT	322.9 MPa
Tensile strength in transverse direction	YT	322.9 MPa
Compressive strength in longitudinal direction	XC	165.4 MPa
Compressive strength in transverse direction	YC	165.4 MPa
Shear strength	SC	55 MPa