The closed loop shown in the figure can be used to model a c

The closed loop shown in the figure can be used to model a chain link. Considering bending only and using straight beam energy formulation, (a) obtain an expression for bending moment variation with respect to position, (b) deflection of the link in the loading direction by assuming flexural rigidity EI, R and L as a known quantities and R = L/4.

The bending moment equation is

M/I = E/R = F/Y.