Hi, I would like to calculate a bending energy of a circular rod. It should be elastic bending. The rod/circular column should be loaded with some point load force at it's top. Any amount could be used, for example F=1,10,100 kN... I know how to calculate a strain energy of a rod loaded with an axial force. But that formula does not include bending, just normal stress: U = (σ^2*V)/2*E Could somebody please help me with this issue? Thank you.