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

Table 4

Material parameters of GFRP lattice webs.

Property	LS-DYNA parameter	Experimental value
Density	RO	1.8 g/cm^3
Modulus in longitudinal direction	EA	6.41 GPa
Modulus in transverse direction	EB	6.41 GPa
Shear modulus	GAB	5.82 GPa
Poisson’s ratio	PRBA	0.15
Tensile strength in longitudinal direction	XT	296.3 MPa
Tensile strength in transverse direction	YT	296.3 MPa
Compressive strength in longitudinal direction	XC	149.8 MPa
Compressive strength in transverse direction	YC	149.8 MPa
Shear strength	SC	75 MPa