I am working on a bridge project based on a pleated and curved hypar (I attached some pictures). I was thinking to fold it using a sheet of mild steel 1.5 mm thick perforated along crease lines. The person who has to do the perforations is concerned about the design, he thinks that it is not suitable to be folded using metal. I am new to sheet metal folding and I am not sure about how metal will behave.
The model is 1200x400 mm and the distance between folds is 20 mm. Perforation is going to be made with water jet, slots are 2.5x7 mm and the distance between slots is 5 mm.
It might break or probably I will not able to fold it by hand.
I would be grateful if somebody could advice on it.