Determine the bending strain energy in the cantilevered beam. Solve the problem two ways, (a) Apply Eq. 14–17 . (b) The load w dx acting on a segment dx of the beam is displaced a distance y, where y = w(−x4 + 4L3 x − 3L4) /(24EI), the equation of the elastic curve. Hence the internal strain energy in the differential segment dx of the beam is equal to the external work, i.e.,
Prob. 14–23
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