No doubt they do some internal, proprietary testing.
Here is what I would use; it goes by commercial names like Polymetal and Alumapanel. It is a 3-6mm core of recycled thermoplastic with a .007-.014" aluminum skin on one or both sides. It is used, for example, in commercial signage.
The material I experimented with can be sheared, rolled, and braked by hand and is about as stiff as 5/8" plywood at 10% the weight. I propose a 45° roll followed by a braked edge, butted together to make a radiused edge. The seam across the radius is held by a flexible H-molding.