Optimum panel shape/framing

[idkfa]

PVC foam core thickness?

"For optimum design, the length should be twice as long or grater than the breadth. This is true whether you are designing with a cored panel or single skin."




This is the case for a flat square, placing a single frame, dividing the panel into 2 rectangles.

For a sphere, I suggest it would be 12 pentagons (30 unique sides = 30/5 = 6 discrete pentagons) But more importantly the framing is not weighted in one axis versus the other.

In the case of a hull (a cylinder) shouldn't the ratio be increased from 2:1 of the flat panel, to a more even one like the sphere, say 3:2? ie. increased panel stiffness of the curve.

[The Loftsman]

Yawn,
Wots it all about alfie.

[messabout]

You are delving into plate design principles here. How do you support the 2 to 1 L/W premise? I'm not arguing, just asking.

[idkfa]

With frames and stringers?

The thinner the wall, the closer the spacing.