Lightweight Photovoltaic Composite Structure on Stratospheric Airships

Table 3

The equivalent mechanical properties of honeycomb.

Type	Values
Double hole wall, a	1.5 mm
Honeycomb angle, θ	55°
Elastic modulus of Nomex paperboard, Es	1780 MPa
Elastic modulus of honeycomb core layer, E1	1.18 MPa
Shear modulus of honeycomb core layer, G1	2.01 MPa
Single hole wall, l	2 mm
Nomex paperboard thickness, t	0.13 mm
Shear modulus of Nomex paperboard, Gs	623 MPa
Elastic modulus of honeycomb core layer, E2	0.92 MPa