I need some help with the geometry of my jig, so I can determine the actual deflection of each sample from the measurement I got at the end of the bending arm. The two things I know are the radius of the bending arm, and the length of the arc at the free end of the bending arm. I also know the radius at each of the testing positions.
How do I get the included angle of the measurement I took, and then find the arc length i.e. the deflection at the sample?
I need to solve for n and then find the L for the smaller radius at each testing position.