Problem 14. A thin circular ring in the form of one quadrant OA of a circle and a bar BA lie in the x-Z plane. Both the ring and the bar have bending rigidity EI and torsional rigidity GJ. The unsupported end B is loaded by a twisting moment represented by the vector T directed parallel to the x-axis as shown in the figure. Determine the Y-component of displacement of point B.
Answer: (T_(B)R^(2))/(4)((1)/(EI)+(1)/(GJ))