Looking at the 13 edition of AISC Chapter F11
I tend to follow section 1 when bending a flat plate about its weak axis. Is there a lower limit to the thickness that this would apply to? if i bend a 2"x1/4" plate about the 1/4" direction/weak direction could i follow the same procedure with a 2"x16 ga piece of steel? Or does the behavior change at a certain thickness?
To add to this why doesn't AISI Cold Form manual allow the sue of the plastic section for the bending of a flat plate?