xpensive wrote:I think the fact of the matter is that none of you members have a living clue of how an F1 monocoque is built up whatsoever
That's a bit harsh.
Composite F1 tub structures are designed, analyzed, and manufactured using well established processes. While the members may not have intimate knowledge of the precise core thickness dimensions, ply stack and fiber orientations, anyone with a current working knowledge of autoclaved composites can probably make a good guesstimate.
The main purpose of core is to increase the buckling properties of the structure by stabilizing the inner/outer composite laminates. A secondary function is to improve impact performance. The core thickness at any given point on the tub varies, and is typically kept to the minimum required. The core thickness is usually around 2 to 3 times the skin thickness, except at the edges where it is tapered down to nothing. The skins themselves are probably 2mm or less, over the cored areas.
As for the laminate's plies and orientation, the plies are mostly unidirectional. A few 45 deg weaves are used to help stabilize the uni plies, mostly at the laminate edges and around any inserts, attachments, or open holes.
The fibers used are mostly medium and high modulus PAN materials like T800 (42Msi) and M46 (63Msi).