Total strain energy stored in a simply supported beam of span, 'L' and flexural rigidity 'EI 'subjected to a concentrated load 'W' at the centre is equal to:
1
\(\frac{{{W^2}{L^3}}}{{40EI}}\)
2
\(\frac{{{W^2}{L^3}}}{{60EI}}\)
3
\(\frac{{{W^2}{L^3}}}{{96EI}}\)
4
\(\frac{{{W^2}{L^3}}}{{240EI}}\)