Stress Distribution on Sandwich Structure with Triangular Grid Cores Suffered from Bending Load

Table 1

T700/epoxy resin composite mechanical properties [19].

Symbol	Value	Concrete meaning
	123 GPa	Longitudinal elasticity modulus
	8.4 GPa	Transverse elasticity modulus
	8.4 GPa	Transverse elasticity modulus
	0.32	Poisson’s ratio
	0.30	Poisson’s ratio
	4 GPa	Epoxy resin shear modulus
	3 GPa	In-plane shear modulus
	2100 MPa	Longitudinal tensile strength
	800 MPa	Longitudinal compressive strength
	25 MPa	Transverse tensile strength
	120 MPa	Transverse compressive strength
	40 MPa	In-plane shear strength