| Table of Contents | ||
|---|---|---|
|
Materials
Area of Nomex honeycomb: 8.5 ft^2
flatwise tensile strength (3x3)
maximum 9 in^2
face sheet compressive strength (3x3)
L < 8 * t
2 < W < L, W > 2 * t
compressive strength/modulus (3x3)
min area: 4 in^2
max area: 9 in^2
flexure creep (3x8 and 3x24)
core/core-to-facing failure mode desired: width = 3 in, length = 8 in
facesheet failure mode desired: width: 3 in, length 24 in
flexural strength/modulus
2D flexural properties of sandwich subjected to distributed load (ASTM D6416)
L, W = 1.017 * (support span)
facesheet properties of sandwich by long beam exposure (ASTM D7249) (3x24)
width = 3 in
length = 24 in
determining sandwich flexural/shear stiffness (ASTM D7250)
width < L/2
length = (span length) + 2 in
Flatwise Tensile Strength
...