Question: a ) A timber beam has a rectangular cross - section, 1 5 0 m m wide by 3 0 0 m m deep and

a) A timber beam has a rectangular cross-section, 150mm wide by 300mm deep and is
simply supported over a span of 4m. The beam is subjected to a two-point loading at
the quarter span points from the ends. If the beam fails in shear when the total of the
two concentrated equal loads is 180kN, determine the maximum shear stress at failure.
(5 Marks)
a ) A timber beam has a rectangular cross -

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