A steel bar 20 mm in diameter simply-supported at its ends over a total span of

Question

A steel bar 20 mm in diameter simply-supported at its ends over a total span of 40 cm carries a load at its centre. If the maximum stress induced in the bar is limited to N/mm², the bending strain energy stored in the bar, is

Options:

A . 411 N mm

B . 511 N mm

C . 611 N mm

D . 711 N mm

Answer: Option C

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