A circular shaft of length L which is fixed at end A and free at end B has torsion of magnitude as shown below acting at B, C and D respectively.
The strain energy stored in the shaft will be.
1
\(\frac{{{T^2}L}}{{2GJ}}\)
2
\(\frac{5}{6}\frac{{{T^2}L}}{{GJ}}\)
3
\(\frac{{5{T^2}L}}{{2GJ}}\)
4
\(\frac{{3{T^2}L}}{{2GJ}}\)