Experimental Investigation on the Mechanical Properties of a Sandwich Structure Made of Flax/Glass Hybrid Composite Facesheet and Honeycomb Core

Table 1

Specifications of reinforcement fibers [8, 18].

Properties	Biotex™ flax	E-glass
Density (g/cm^3)	1.5	2.5
Tensile strength (MPa)	500	2000-3000
Tensile modulus (GPa)	50	70-75
Elongation at brake %	2	2.5-3
Fiber diameter (ɥm)	20	25
Fiber length (cm)	100	—
Cellulose (%)	64-71	—