Hollow cylinder v/s Solid cylinder
I have a cylinder of length 310 mm, diameter 60 mm, Outer radius 30mm, inner radius 3 mm and thickness 27mm and Young's modulus 20GPa. I am interested to calculate change of displacement in both hollow and solid cylinder. However, the value I am getting in hollow cylinder is less than solid cylinder. Any idea why so? wherein the deformation magnitude of hollow cylinder should be quite greater than the solid one?
Thanks,