Thanks JStephen, I suppose your suggestion would be possible however, when given a shape code that has many bends of differing angles it becomes a bit much to try samples !
Obviously the radius has a great effect on the amount the bar stretches and is dependant on the diameter of the mandrel...
I am looking for either a formula or a table showing the amount of "creepage" or stretch rebar has while it is being fabricated in the rebar shop.
Obviously the main things to know would be the angle of the bend, the bender pin diameter and the rebar diameter.
From memory it is not an absolute...
