\(\frac{{P{L^3}}}{{3EI}}\) is the deflection under the load P of a cantilever beam (length L, modulus of elasticity E, moment of inertia I). The strain energy due to bending is

\(\frac{{{P^2}{L^3}}}{{48EI}}\)

\(\frac{{P{L^3}}}{{3EI}}\) is the deflection under the load P of a ca

1.	\(\frac{{P{L^3}}}{{3EI}}\) is the deflection under the load P of a cantilever beam (length L, modulus of elasticity E, moment of inertia I). The strain energy due to bending is
A.	\(\frac{{{P^2}{L^3}}}{{3EI}}\)
B.	\(\frac{{{P^2}{L^3}}}{{6EI}}\)
C.	\(\frac{{{P^2}{L^3}}}{{4EI}}\)
D.	\(\frac{{{P^2}{L^3}}}{{48EI}}\)
Answer» C. \(\frac{{{P^2}{L^3}}}{{4EI}}\)

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\(\frac{{P{L^3}}}{{3EI}}\) is the deflection under the load P of a cantilever beam (length L, modulus of elasticity E, moment of inertia I). The strain energy due to bending is

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